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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
19,400 | 1603.05759 | Benjamin Lienhard | Benjamin Lienhard, Tim Schr\"oder, Sara Mouradian, Florian Dolde, Toan
Trong Tran, Igor Aharonovich, and Dirk R. Englund | Bright and photostable single-photon emitter in silicon carbide | null | Optica 3, 768-774 (2016) | 10.1364/OPTICA.3.000768 | null | quant-ph cond-mat.mes-hall physics.atom-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Single-photon sources are of paramount importance in quantum communication,
quantum computation, and quantum metrology. In particular, there is great
interest in realizing scalable solid-state platforms that can emit triggered
photons on demand to achieve scalable nanophotonic networks. We report on a
visible-spectrum single-photon emitter in 4H silicon carbide (SiC). The emitter
is photostable at room and low temperatures, enabling photon counts per second
in excess of 2$\times$10$^6$ from unpatterned bulk SiC. It exists in two
orthogonally polarized states, which have parallel absorption and emission
dipole orientations. Low-temperature measurements reveal a narrow zero phonon
line (linewidth $<0.1~$nm) that accounts for $>30$% of the total
photoluminescence spectrum.
| [{'version': 'v1', 'created': 'Fri, 18 Mar 2016 03:40:28 GMT'}
{'version': 'v2', 'created': 'Thu, 25 Feb 2021 03:29:44 GMT'}] | 2021-02-26 | [array(['Lienhard', 'Benjamin', ''], dtype=object)
array(['Schröder', 'Tim', ''], dtype=object)
array(['Mouradian', 'Sara', ''], dtype=object)
array(['Dolde', 'Florian', ''], dtype=object)
array(['Tran', 'Toan Trong', ''], dtype=object)
array(['Aharonovich', 'Igor', ''], dtype=object)
array(['Englund', 'Dirk R.', ''], dtype=object)] |
19,401 | 1605.09488 | Shuai Jing | Rainer Buckdahn and Shuai Jing | Mean-field SDE driven by a fractional Brownian motion and related
stochastic control problem | 34 pages | SIAM J. Control Optim. 55-3, pp. 1500-1533 (2017) | 10.1137/16M1077921 | null | math.OC math.PR | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study a class of mean-field stochastic differential equations driven by a
fractional Brownian motion with Hurst parameter $H\in(1/2,1)$ and a related
stochastic control problem. We derive a Pontryagin type maximum principle and
the associated adjoint mean-field backward stochastic differential equation
driven by a classical Brownian motion, and we prove that under certain
assumptions, which generalise the classical ones, the necessary condition for
the optimality of an admissible control is also sufficient.
| [{'version': 'v1', 'created': 'Tue, 31 May 2016 04:10:45 GMT'}
{'version': 'v2', 'created': 'Fri, 7 Jul 2017 14:44:23 GMT'}] | 2017-07-10 | [array(['Buckdahn', 'Rainer', ''], dtype=object)
array(['Jing', 'Shuai', ''], dtype=object)] |
19,402 | 1505.06942 | Maxim V. Polyakov | M.V. Polyakov, J. Sieverding | Heavy quark mass expansion of vector and tensor currents and intrinsic
charm in nucleon form factors | 32 pages | null | 10.1007/JHEP01(2016)092 | null | hep-ph hep-ex | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The framework of the expansion by subgraphs is used to compute asymptotic
expansions for the vector and the tensor currents in the limit of large quark
masses. We use the results to obtain an estimate for the influence of heavy
quarks on the nucleon electromagnetic and tensor form factors.
| [{'version': 'v1', 'created': 'Tue, 26 May 2015 13:42:04 GMT'}] | 2016-02-17 | [array(['Polyakov', 'M. V.', ''], dtype=object)
array(['Sieverding', 'J.', ''], dtype=object)] |
19,403 | 2206.04559 | Frauke Bleher | Frauke M. Bleher and Nicholas Camacho | Holomorphic differentials of Klein four covers | 25 pages; changed name of covered curve from $U$ to $Y$, fixed
statement of Theorem 1.1, fixed typo in Example 2.19; added explanation why
[14, Theorem 6.4] is incorrect in general (see Remark 2.21) | J. Pure Apple. Algebra 227 (2023), no. 10, Paper No. 107384, 27
pages | 10.1016/j.jpaa.2023.107384 | null | math.AG math.NT | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Let $k$ be an algebraically closed field of characteristic two, and let $G$
be isomorphic to $\mathbb{Z}/2\times\mathbb{Z}/2$. Suppose $X$ is a smooth
projective irreducible curve over $k$ with a faithful $G$-action, and assume
that the cover $X\to X/G$ is totally ramified, in the sense that it is ramified
and every branch point is totally ramified. We study to what extent the lower
ramification groups of the closed points of $X$ determine the isomorphism types
of the indecomposable $kG$-modules and the multiplicities with which they occur
as direct summands of the space $\mathrm{H}^0(X,\Omega_{X/k})$ of holomorphic
differentials of $X$ over $k$. In the case when $X/G=\mathbb{P}^1_k$, we
completely determine the decomposition of $\mathrm{H}^0(X,\Omega_{X/k})$ into a
direct sum of indecomposable $kG$-modules. Moreover, we show that the
isomorphism classes of indecomposable $kG$-modules that actually occur as
direct summands belong to an infinite list of non-isomorphic indecomposable
$kG$-modules that contain modules of arbitrarily large $k$-dimension. In
particular, our results show that [14, Theorem 6.4] is incorrect.
| [{'version': 'v1', 'created': 'Thu, 9 Jun 2022 15:15:18 GMT'}
{'version': 'v2', 'created': 'Mon, 27 Feb 2023 15:10:37 GMT'}] | 2023-06-01 | [array(['Bleher', 'Frauke M.', ''], dtype=object)
array(['Camacho', 'Nicholas', ''], dtype=object)] |
19,404 | 1307.6311 | Yang Xiaojun | Xiaojun Yang, Yuke Li, Chenyi Shen, Bingqi Si, Yunlei Sun, Qian Tao,
Guanghan Cao Zhuan Xu and Fuchun Zhang | Sr and Mn co-doped LaCuSO: A wide band gap oxide diluted magnetic
semiconductor with TC around 200K | 10 pages, 3 figures | Appl. Phys. Lett. 103, 022410 (2013) | 10.1063/1.4813540 | null | cond-mat.mtrl-sci cond-mat.str-el | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Here we report the synthesis of a bulk oxide diluted magnetic semiconductor
(DMS) system La1-xSrxCu0.925Mn0.075SO (x=0, 0.025, 0.05, 0.075, and 0.1). As a
wide band gap p-type oxide semiconductor, LaCuSO satisfies all the conditions
forecasted theoretically to be a room temperature DMS. The Curie temperature
(TC) is around 200K as x>0.05, which is among the highest TC record of known
bulk DMS materials up to now. The system provides a rare example of oxide DMS
system with p-type conduction, which is important for formation of high
temperature spintronic devices.
| [{'version': 'v1', 'created': 'Wed, 24 Jul 2013 07:37:13 GMT'}] | 2013-07-25 | [array(['Yang', 'Xiaojun', ''], dtype=object)
array(['Li', 'Yuke', ''], dtype=object)
array(['Shen', 'Chenyi', ''], dtype=object)
array(['Si', 'Bingqi', ''], dtype=object)
array(['Sun', 'Yunlei', ''], dtype=object)
array(['Tao', 'Qian', ''], dtype=object)
array(['Xu', 'Guanghan Cao Zhuan', ''], dtype=object)
array(['Zhang', 'Fuchun', ''], dtype=object)] |
19,405 | math/0503255 | Werner Timmermann | Werner Timmermann | Zero product preservers and orthogonality preservers in algebras of
unbounded operators | null | null | null | null | math.OA | null | Applying a result of abstract ring theory we get that bijective additive
mappings on standard algebras of unbounded operators preserving zero products
are multiples of ring isomorphisms. The structure of additive bijective
mappings on certain classes of standard algebras of unbounded operators
preserving orthogonality in both directions is also investigated. The results
are quite similar to those for algebras of bounded operators
| [{'version': 'v1', 'created': 'Mon, 14 Mar 2005 09:41:26 GMT'}] | 2007-05-23 | [array(['Timmermann', 'Werner', ''], dtype=object)] |
19,406 | 2303.14183 | Changqing Zhu | Changqing Zhu, Patrick Pilch, Anneke Reinold, Dennis Kudlacik, Gunther
Springholz, Alberta Bonanni, Marc Assmann, Mirko Cinchetti, and Zhe Wang | Ultrafast dynamics of optically excited charge carriers in the
room-temperature antiferromagnetic semiconductor $\alpha $-MnTe | null | Physical Review MATERIALS 7, 054601 (2023) | 10.1103/PhysRevMaterials.7.054601 | null | cond-mat.mtrl-sci | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We report on time-resolved optical and terahertz ultrafast spectroscopy of
charge-carrier dynamics in the room-temperature antiferromagnetic semiconductor
$\alpha $-MnTe. By optically pumping the system with 1.55 eV photons at room
temperature, we excite charge carriers in the conduction band through the
indirect band gap and investigate the dynamical response of nonequilibrium
states using optical as well as terahertz transmission probes. Three relaxation
processes are revealed by their characteristic relaxation times of the order of
1, 10, and 100~ps, whose exact values are functions of the pump fluence. For
high pump fluences nonlinear dependence on the pump fluence is observed both in
the optical and terahertz probes.
| [{'version': 'v1', 'created': 'Fri, 24 Mar 2023 17:50:19 GMT'}
{'version': 'v2', 'created': 'Tue, 23 May 2023 08:47:15 GMT'}
{'version': 'v3', 'created': 'Wed, 24 May 2023 07:23:30 GMT'}] | 2023-05-25 | [array(['Zhu', 'Changqing', ''], dtype=object)
array(['Pilch', 'Patrick', ''], dtype=object)
array(['Reinold', 'Anneke', ''], dtype=object)
array(['Kudlacik', 'Dennis', ''], dtype=object)
array(['Springholz', 'Gunther', ''], dtype=object)
array(['Bonanni', 'Alberta', ''], dtype=object)
array(['Assmann', 'Marc', ''], dtype=object)
array(['Cinchetti', 'Mirko', ''], dtype=object)
array(['Wang', 'Zhe', ''], dtype=object)] |
19,407 | 2108.07594 | Ole-Christoffer Granmo | Sondre Glimsdal and Ole-Christoffer Granmo | Coalesced Multi-Output Tsetlin Machines with Clause Sharing | 23 pages, 9 figures | null | null | null | cs.AI cs.LG | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Using finite-state machines to learn patterns, Tsetlin machines (TMs) have
obtained competitive accuracy and learning speed across several benchmarks,
with frugal memory- and energy footprint. A TM represents patterns as
conjunctive clauses in propositional logic (AND-rules), each clause voting for
or against a particular output. While efficient for single-output problems, one
needs a separate TM per output for multi-output problems. Employing multiple
TMs hinders pattern reuse because each TM then operates in a silo. In this
paper, we introduce clause sharing, merging multiple TMs into a single one.
Each clause is related to each output by using a weight. A positive weight
makes the clause vote for output $1$, while a negative weight makes the clause
vote for output $0$. The clauses thus coalesce to produce multiple outputs. The
resulting coalesced Tsetlin Machine (CoTM) simultaneously learns both the
weights and the composition of each clause by employing interacting Stochastic
Searching on the Line (SSL) and Tsetlin Automata (TA) teams. Our empirical
results on MNIST, Fashion-MNIST, and Kuzushiji-MNIST show that CoTM obtains
significantly higher accuracy than TM on $50$- to $1$K-clause configurations,
indicating an ability to repurpose clauses. E.g., accuracy goes from $71.99$%
to $89.66$% on Fashion-MNIST when employing $50$ clauses per class (22 Kb
memory). While TM and CoTM accuracy is similar when using more than $1$K
clauses per class, CoTM reaches peak accuracy $3\times$ faster on MNIST with
$8$K clauses. We further investigate robustness towards imbalanced training
data. Our evaluations on imbalanced versions of IMDb- and CIFAR10 data show
that CoTM is robust towards high degrees of class imbalance. Being able to
share clauses, we believe CoTM will enable new TM application domains that
involve multiple outputs, such as learning language models and auto-encoding.
| [{'version': 'v1', 'created': 'Tue, 17 Aug 2021 12:52:01 GMT'}] | 2021-08-18 | [array(['Glimsdal', 'Sondre', ''], dtype=object)
array(['Granmo', 'Ole-Christoffer', ''], dtype=object)] |
19,408 | 1106.5565 | Danil Boukhvalov W | D. W. Boukhvalov, S. Moehlecke, R. R. da Silva, Y. Kopelevich | Oxygen adsorption effect on magnetic properties of graphite | 14 pages, 6 figures | Phys. Rev. B 83, 233408 (2011) | 10.1103/PhysRevB.83.233408 | null | cond-mat.mes-hall cond-mat.mtrl-sci | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Both experimental and theoretical studies of the magnetic properties of
micrographite and nanographite indicate a crucial role of the partial oxidation
of graphitic zigzag edges in ferromagnetism. In contrast to total and partial
hydrogenation, the oxidation of half of the carbon atoms on the graphite edges
transforms the antiferromagnetic exchange interaction between graphite planes
and over graphite ribbons to the ferromagnetic interaction. The stability of
the ferromagnetism is discussed.
| [{'version': 'v1', 'created': 'Tue, 28 Jun 2011 05:06:59 GMT'}] | 2011-06-29 | [array(['Boukhvalov', 'D. W.', ''], dtype=object)
array(['Moehlecke', 'S.', ''], dtype=object)
array(['da Silva', 'R. R.', ''], dtype=object)
array(['Kopelevich', 'Y.', ''], dtype=object)] |
19,409 | 1612.05379 | Dmitry Luchinsky G | DG Luchinsky, M Khasin, D Timucin, J Sass, B Brown | Inferential framework for two-fluid model of cryogenic chilldown | 15 pages, 10 figures | null | null | null | physics.flu-dyn | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We report a development of probabilistic framework for parameter inference of
cryogenic two-phase flow based on fast two-fluid solver. We introduce a concise
set of cryogenic correlations and discuss its parameterization. We present
results of application of proposed approach to the analysis of cryogenic
chilldoown in horizontal transfer line. We demonstrate simultaneous
optimization of large number of model parameters obtained using global
optimization algorithms. It is shown that the proposed approach allows accurate
predictions of experimental data obtained both with saturated and sub-cooled
liquid nitrogen flow. We discuss extension of predictive capabilities of the
model to practical full scale systems.
| [{'version': 'v1', 'created': 'Fri, 16 Dec 2016 06:34:54 GMT'}] | 2016-12-19 | [array(['Luchinsky', 'DG', ''], dtype=object)
array(['Khasin', 'M', ''], dtype=object)
array(['Timucin', 'D', ''], dtype=object)
array(['Sass', 'J', ''], dtype=object)
array(['Brown', 'B', ''], dtype=object)] |
19,410 | 2112.13689 | Jie Ma | Jie Ma and Tianchi Yang | On extremal numbers of the triangle plus the four-cycle | null | null | null | null | math.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | For a family $\mathcal{F}$ of graphs, let $ex(n,\mathcal{F})$ denote the
maximum number of edges in an $n$-vertex graph which contains none of the
members of $\mathcal{F}$ as a subgraph. A longstanding problem in extremal
graph theory asks to determine the function $ex(n,\{C_3,C_4\})$. Here we give a
new construction for dense graphs of girth at least five with arbitrary number
of vertices, providing the first improvement on the lower bound of
$ex(n,\{C_3,C_4\})$ since 1976. As a corollary, this yields a negative answer
to a problem in Chung-Graham [3].
| [{'version': 'v1', 'created': 'Mon, 27 Dec 2021 13:57:05 GMT'}
{'version': 'v2', 'created': 'Mon, 5 Dec 2022 04:00:28 GMT'}] | 2022-12-06 | [array(['Ma', 'Jie', ''], dtype=object)
array(['Yang', 'Tianchi', ''], dtype=object)] |
19,411 | 1810.04076 | Divyang Bhimani | Divyang G. Bhimani | Global well-posedness for fractional Hartree equation on modulation
spaces and Fourier algebra | 15 pages | null | null | null | math.AP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the Cauchy problem for fractional Schr\"odinger equation with cubic
convolution nonlinearity ($i\partial_t u - (-\Delta)^{\frac{\alpha}{2}}u\pm
(K\ast |u|^2) u =0$) with Cauchy data in the modulation spaces $M^{p,q}(\mathbb
R^{d}).$ For $K(x)= |x|^{-\gamma}$ $ (0< \gamma< \text{min} \{\alpha, d/2\})$,
we establish global well-posedness results in $M^{p,q}(\mathbb R^{d}) (1\leq p
\leq 2, 1\leq q < 2d/ (d+\gamma))$ when $\alpha =2, d\geq 1$, and with radial
Cauchy data when $d\geq 2, \frac{2d}{2d-1}< \alpha < 2. $ Similar results are
proven in Fourier algebra $\mathcal{F}L^1(\mathbb R^d) \cap L^2(\mathbb R^d).$
| [{'version': 'v1', 'created': 'Tue, 9 Oct 2018 15:37:20 GMT'}] | 2018-10-10 | [array(['Bhimani', 'Divyang G.', ''], dtype=object)] |
19,412 | 2206.13541 | Niall Macpherson | Yolanda Lozano, Niall T. Macpherson, Nicol\`o Petri, Cristian Risco | New AdS$_3$/CFT$_2$ pairs in massive IIA with $(0,4)$ and $(4,4)$
supersymmetries | 41 pages + appendix. v2 minor corrections, published version | null | 10.1007/JHEP09(2022)130 | null | hep-th | http://creativecommons.org/licenses/by/4.0/ | We construct a new class of $\text{AdS}_3\times $S$^3\times $M$_4$ solutions
of massive Type IIA supergravity with $(0,4)$ supersymmetries and SU(3)
structure. We study in detail two subclasses of these solutions. The first
subclass is when M$_4=$S$^2\times \Sigma_2$, with $\Sigma_2$ a 2d Riemann
surface, and the geometry is foliated over the $\Sigma_2$. We interpret these
solutions as duals to surface defect CFTs within the 6d $(1,0)$ CFTs dual to
the $\text{AdS}_7\times$S$^2\times I$ solutions of massive IIA supergravity.
The second subclass is when M$_4=\mathbb{T}^3\times I$ and the geometry is
foliated over the interval. In this case supersymmetry is enhanced to $(4,4)$
in the massless limit, and the solutions are holographically dual to $(4,4)$
CFTs living in two dimensional D2-NS5-D4 Hanany-Witten brane set-ups. In turn,
in the massive case the solutions find an interpretation as D2-D4 branes
embedded in Type I' string theory. We construct explicit quiver gauge theories
from the different brane set-ups that flow in the IR to the 2d dual CFTs dual
to the solutions. We check the validity of our proposals with the matching
between the field theory and holographic central charges.
| [{'version': 'v1', 'created': 'Mon, 27 Jun 2022 18:00:06 GMT'}
{'version': 'v2', 'created': 'Fri, 16 Sep 2022 07:12:56 GMT'}] | 2022-09-28 | [array(['Lozano', 'Yolanda', ''], dtype=object)
array(['Macpherson', 'Niall T.', ''], dtype=object)
array(['Petri', 'Nicolò', ''], dtype=object)
array(['Risco', 'Cristian', ''], dtype=object)] |
19,413 | 1608.04680 | Dan Schult | Ken Segall, Matthew LeGro, Steven Kaplan, Oleksiy Svitelskiy, Shreeya
Khadka, Patrick Crotty, Daniel Schult | Synchronization dynamics on the picosecond timescale in coupled
Josephson junction neurons | 13 pages, 8 figures | Phys. Rev. E 95, 032220 (2017) | 10.1103/PhysRevE.95.032220 | null | q-bio.NC cond-mat.dis-nn cs.ET physics.bio-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Conventional digital computation is rapidly approaching physical limits for
speed and energy dissipation. Here we fabricate and test a simple neuromorphic
circuit that models neuronal somas, axons and synapses with superconducting
Josephson junctions. The circuit models two mutually coupled excitatory
neurons. In some regions of parameter space the neurons are desynchronized. In
others, the Josephson neurons synchronize in one of two states, in-phase or
anti-phase. An experimental alteration of the delay and strength of the
connecting synapses can toggle the system back and forth in a phase-flip
bifurcation. Firing synchronization states are calculated >70,000 times faster
than conventional digital approaches. With their speed and low energy
dissipation (10-17 Joules/spike), this set of proof-of- concept experiments
establishes Josephson junction neurons as a viable approach for improvements in
neuronal computation as well as applications in neuromorphic computing.
| [{'version': 'v1', 'created': 'Tue, 16 Aug 2016 17:33:44 GMT'}
{'version': 'v2', 'created': 'Sat, 3 Sep 2016 22:01:54 GMT'}
{'version': 'v3', 'created': 'Thu, 9 Feb 2017 01:00:35 GMT'}] | 2017-03-29 | [array(['Segall', 'Ken', ''], dtype=object)
array(['LeGro', 'Matthew', ''], dtype=object)
array(['Kaplan', 'Steven', ''], dtype=object)
array(['Svitelskiy', 'Oleksiy', ''], dtype=object)
array(['Khadka', 'Shreeya', ''], dtype=object)
array(['Crotty', 'Patrick', ''], dtype=object)
array(['Schult', 'Daniel', ''], dtype=object)] |
19,414 | 1710.09531 | Kyoko Watanabe | Kyoko Watanabe, Jun Kitagawa, Satoshi Masuda | Characteristics that Produce White-Light Enhancements in Solar Flares
Observed by Hinode/SOT | 17 pages, 9 figures, 3 tables, accepted for publication in ApJ | null | 10.3847/1538-4357/aa9659 | null | astro-ph.SR | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | To understand the conditions that produce white-light (WL) enhancements in
solar flares, a statistical analysis of visible continuum data as observed by
Hinode/Solar Optical Telescope (SOT) was performed. In this study,
approximately 100 flare events from M- and X-class flares were selected. The
time period during which the data were recorded spans from January 2011 to
February 2016. Of these events, approximately half are classified as
white-light flares (WLFs), whereas the remaining events do not show any
enhancements of the visible continuum (non-WLF; NWL). In order to determine the
existence of WL emission, running difference images of not only the Hinode/SOT
WL (G-band, blue, green, and red filter) data but also the Solar Dynamics
Observatory/Helioseismic and Magnetic Imager continuum data are used. A
comparison between these two groups of WL data in terms of duration,
temperature, emission measure of GOES soft X-rays, distance between EUV flare
ribbons, strength of hard X-rays, and photospheric magnetic field strength was
undertaken. In this statistical study, WLF events are characterized by a
shorter time-scale and shorter ribbon distance compared with NWL events. From
the scatter plots of the duration of soft X-rays and the energy of non-thermal
electrons, a clear distinction between WLF and NWL events can be made. It is
found that the precipitation of large amounts of accelerated electrons within a
short time period plays a key role in generating WL enhancements. Finally, it
was demonstrated that the coronal magnetic field strength in the flare region
is one of the most important factors that allow the individual identification
of WLF events from NWL events.
| [{'version': 'v1', 'created': 'Thu, 26 Oct 2017 04:06:01 GMT'}] | 2017-12-20 | [array(['Watanabe', 'Kyoko', ''], dtype=object)
array(['Kitagawa', 'Jun', ''], dtype=object)
array(['Masuda', 'Satoshi', ''], dtype=object)] |
19,415 | 1810.05362 | Sean Curry | Sean N. Curry, Peter Ebenfelt | Bounded strictly pseudoconvex domains in $\mathbb{C}^2$ with obstruction
flat boundary II | 17 pages | null | null | null | math.CV | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | On a bounded strictly pseudoconvex domain in $\mathbb{C}^n$, $n>1$, the
smoothness of the Cheng-Yau solution to Fefferman's complex Monge-Ampere
equation up to the boundary is obstructed by a local CR invariant of the
boundary. For a bounded strictly pseudoconvex domain $\Omega\subset
\mathbb{C}^2$ diffeomorphic to the ball, we prove that the global vanishing of
this obstruction implies biholomorphic equivalence to the unit ball, subject to
the existence of a holomorphic vector field satisfying a mild approximate
tangency condition along the boundary. In particular, by considering the Euler
vector field multiplied by $i$ the result applies to all domains in a large
$C^1$ open neighborhood of the unit ball in $\mathbb{C}^2$. The proof rests on
establishing an integral identity involving the CR curvature of $\partial
\Omega$ for any holomorphic vector field defined in a neighborhood of the
boundary. The notion of ambient holomorphic vector field along the CR boundary
generalizes naturally to the abstract setting, and the corresponding integral
identity still holds in the case of abstract CR $3$-manifolds.
| [{'version': 'v1', 'created': 'Fri, 12 Oct 2018 05:25:37 GMT'}] | 2018-10-15 | [array(['Curry', 'Sean N.', ''], dtype=object)
array(['Ebenfelt', 'Peter', ''], dtype=object)] |
19,416 | 1504.00310 | Xiang Yu | Erhan Bayraktar, Xiang Yu | Optimal Investment with Random Endowments and Transaction Costs: Duality
Theory and Shadow Prices | Final version. To appear in Mathematics and Financial Economics.
Keywords: Proportional Transaction Costs, Unbounded Random Endowments,
Acceptable Portfolios, Super-hedging Theorem, Utility Maximization, Shadow
Prices, Convex Duality | null | null | null | q-fin.MF math.OC math.PR | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This paper studies the utility maximization on the terminal wealth with
random endowments and proportional transaction costs. To deal with unbounded
random payoffs from some illiquid claims, we propose to work with the
acceptable portfolios defined via the consistent price system (CPS) such that
the liquidation value processes stay above some stochastic thresholds. In the
market consisting of one riskless bond and one risky asset, we obtain a type of
super-hedging result. Based on this characterization of the primal space, the
existence and uniqueness of the optimal solution for the utility maximization
problem are established using the duality approach. As an important application
of the duality theorem, we provide some sufficient conditions for the existence
of a shadow price process with random endowments in a generalized form as well
as in the usual sense using acceptable portfolios.
| [{'version': 'v1', 'created': 'Wed, 1 Apr 2015 17:34:37 GMT'}
{'version': 'v2', 'created': 'Tue, 28 Apr 2015 18:33:03 GMT'}
{'version': 'v3', 'created': 'Wed, 29 Apr 2015 15:35:43 GMT'}
{'version': 'v4', 'created': 'Tue, 1 Dec 2015 11:39:52 GMT'}
{'version': 'v5', 'created': 'Wed, 26 Jul 2017 17:31:21 GMT'}
{'version': 'v6', 'created': 'Thu, 27 Jul 2017 08:49:18 GMT'}
{'version': 'v7', 'created': 'Sat, 2 Jun 2018 14:13:55 GMT'}
{'version': 'v8', 'created': 'Fri, 24 Aug 2018 13:14:53 GMT'}] | 2018-08-27 | [array(['Bayraktar', 'Erhan', ''], dtype=object)
array(['Yu', 'Xiang', ''], dtype=object)] |
19,417 | 2006.02435 | Max Zimet | Shamit Kachru, Arnav Tripathy, Max Zimet | K3 metrics | 85 pages. V2: corrected typos | null | null | null | hep-th math.AG math.DG | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We provide an explicit construction of Ricci-flat K3 metrics. It employs the
technology of D-geometry, which in the case of interest is equivalent to a
hyper-K\"ahler quotient. We relate it to the construction of arXiv:1810.10540,
and in particular show that it contains the solution to the BPS state counting
problem (that of computing the BPS index of a heterotic little string theory
compactified on $T^2$) discussed therein, which is the data needed for this
second construction of K3 metrics.
| [{'version': 'v1', 'created': 'Wed, 3 Jun 2020 18:00:00 GMT'}
{'version': 'v2', 'created': 'Tue, 6 Oct 2020 02:34:54 GMT'}] | 2020-10-07 | [array(['Kachru', 'Shamit', ''], dtype=object)
array(['Tripathy', 'Arnav', ''], dtype=object)
array(['Zimet', 'Max', ''], dtype=object)] |
19,418 | 1903.01120 | Neri Merhav | Neri Merhav | Error Exponents of Typical Random Trellis Codes | 26 pages, 3 figures, submitted for publication | null | null | null | cs.IT math.IT | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In continuation to an earlier work, where error exponents of typical random
codes were studied in the context of general block coding, with no underlying
structure, here we carry out a parallel study on typical random, time-varying
trellis codes for general discrete memoryless channels, focusing on a certain
range of low rates. By analyzing an upper bound to the error probability of the
typical random trellis code, using the method of types, we first derive a
Csiszar-style error exponent formula (with respect to the constraint length),
which allows to easily identify and characterize properties of good codes and
dominant error events. We also derive a Gallager-style form of this error
exponent, which turns out to be related to the expurgated error exponent. The
main result is further extended to channels with memory and mismatch.
| [{'version': 'v1', 'created': 'Mon, 4 Mar 2019 08:17:53 GMT'}] | 2019-03-05 | [array(['Merhav', 'Neri', ''], dtype=object)] |
19,419 | 2206.04398 | Dean Patient | Dean A. Patient and Simon A. R. Horsley | Removing grazing incidence reflection with half-bound states and
non-Hermitian systems | null | Proc. SPIE 12130, Metamaterials XIII, 1213003 (24 May 2022) | 10.1117/12.2621826 | null | physics.optics | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Grazing incidence waves incident onto a surface will almost always be
completely reflected. Here, we focus on removing reflection at grazing
incidence, adopting the factorisation method from quantum mechanics and
applying it to the Helmholtz equation that governs a single electromagnetic
polarisation. We show that there are two approaches, the first is to require
real dielectric profiles that support a half-bound state at grazing incidence.
The second is to allow non-Hermitian dielectric profiles that exhibit PT
symmetry, supporting waves with constant intensity throughout the profile.
| [{'version': 'v1', 'created': 'Thu, 9 Jun 2022 10:21:04 GMT'}] | 2022-06-10 | [array(['Patient', 'Dean A.', ''], dtype=object)
array(['Horsley', 'Simon A. R.', ''], dtype=object)] |
19,420 | 2001.00655 | Hiroki Iimori | Hiroki Iimori, Giuseppe Abreu and Koji Ishibashi | Fractional Programming for Robust TX BF Design in
Multi-User/Single-Carrier PD-NOMA | 7 pages, 7 figures, the 17th International Symposium on Modeling and
Optimization in Mobile, Ad Hoc and Wireless Networks (WiOpt 2019) | null | null | null | eess.SP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present a new Beamforming-based (BB) Multiple-Input Single-Output
(MISO)-Non-orthogonal Multiple Access (NOMA) scheme for Power Domain NOMA
(PD-NOMA), in which the total transmit power consumption is minimized subjected
to prescribed signal-to-interference-plus-noise ratio (SINR) requirements for
each user, and under the assumption that only imperfect channel state
information (CSI) is available at the transmitter. To this end, the fractional
programming (FP)-based quadratic transform is employed to reformulate the
non-convex SINR constraint of the original problem into a tractable quadratic
form, which contains an estimate of the CSI error vector as a parameter. Taking
advantage of the fact that the zero duality gap holds for the non-convex
quadratic problems, a closed-form expression for an estimate of the CSI error
vector is derived, completing the formulation. Finally, a novel iterative
algorithm based on both the herein derived CSI error vector and the
semidefinite relaxation (SDR) technique is contributed, which is shown to
capable of efficiently solving the constrained min-power problem. Simulation
results are given which illustrate the effectiveness of the proposed algorithm,
which is found to sacrifice only small quantities of transmit power in return
for a substantial increase in robustness against CSI imperfection.
| [{'version': 'v1', 'created': 'Thu, 2 Jan 2020 22:37:19 GMT'}
{'version': 'v2', 'created': 'Mon, 6 Jan 2020 09:56:54 GMT'}
{'version': 'v3', 'created': 'Sat, 25 Apr 2020 10:23:40 GMT'}] | 2020-04-28 | [array(['Iimori', 'Hiroki', ''], dtype=object)
array(['Abreu', 'Giuseppe', ''], dtype=object)
array(['Ishibashi', 'Koji', ''], dtype=object)] |
19,421 | 0810.1882 | Jose Luis Iguain | L. Padilla, H. O. M\'artin and J. L. Iguain | Log-periodic modulation in one-dimensional random walks | 6 pages, 7 figures | null | 10.1209/0295-5075/85/20008 | null | cond-mat.stat-mech | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We have studied the diffusion of a single particle on a one-dimensional
lattice. It is shown that, for a self-similar distribution of hopping rates,
the time dependence of the mean-square displacement follows an anomalous power
law modulated by logarithmic periodic oscillations. The origin of this
modulation is traced to the dependence on the length of the diffusion
coefficient. Both the random walk exponent and the period of the modulation are
analytically calculated and confirmed by Monte Carlo simulations.
| [{'version': 'v1', 'created': 'Fri, 10 Oct 2008 13:25:27 GMT'}] | 2009-11-13 | [array(['Padilla', 'L.', ''], dtype=object)
array(['Mártin', 'H. O.', ''], dtype=object)
array(['Iguain', 'J. L.', ''], dtype=object)] |
19,422 | physics/0209071 | Shlomo E. Sklarz | Shlomo E. Sklarz and Inbal Friedler and David J. Tannor and Yehuda B.
Band and Carl J. Williams | `Flat Phase' Loading of a Bose-Einstein Condensate into an Optical
Lattice | LaTeX 11 Pages, 6 figures | Phys. Rev. A 66, 053620 (2002) | 10.1103/PhysRevA.66.053620 | null | physics.atom-ph cond-mat.soft | null | It has been proposed that the adiabatic loading of a Bose-Einstein Condensate
(BEC) into an optical lattice via the Mott-insulator transition can be used to
initialize a quantum computer [D. Jaksch, {\it et al.}, Phys. Rev. Lett. {\bf
81}, 3108 (1998)]. The loading of a BEC into the lattice without causing band
excitation is readily achievable; however, unless one switches on an optical
lattice very slowly, the optical lattice causes a phase to accumulate across
the condensate. We show analytically and numerically that a cancellation of
this effect is possible by adjusting the harmonic trap force-constant of the
magnetic trap appropriately, thereby facilitating quick loading of an optical
lattice for quantum computing purposes. A simple analytical theory is developed
for a non-stationary BEC in a harmonic trap.
| [{'version': 'v1', 'created': 'Thu, 19 Sep 2002 14:36:57 GMT'}] | 2016-09-08 | [array(['Sklarz', 'Shlomo E.', ''], dtype=object)
array(['Friedler', 'Inbal', ''], dtype=object)
array(['Tannor', 'David J.', ''], dtype=object)
array(['Band', 'Yehuda B.', ''], dtype=object)
array(['Williams', 'Carl J.', ''], dtype=object)] |
19,423 | 1611.03967 | Gabriel Nallathambi | Gabriel Nallathambi, Jose Principe | Signal Processing with Pulse Trains: An Algebraic Approach- Part I | null | null | null | null | cs.ET | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Recently we have shown that it is possible to represent continuous amplitude,
continuous time, band limited signals with an error as small as desired using
pulse trains via the integrate and fire converter (IFC). The IFC is an ultra
low power converter and processing with pulse trains is compatible with the
trends in the silicon technology for very low supply voltages. This paper
presents the definition of addition in pulse trains created by the IFC using
exclusively timing information, and proofs that it constitutes an Abelian group
in the space of IFC pulse trains. We also show that pulse domain addition
corresponds to pointwise addition of analog signals.
| [{'version': 'v1', 'created': 'Sat, 12 Nov 2016 08:12:28 GMT'}] | 2016-11-15 | [array(['Nallathambi', 'Gabriel', ''], dtype=object)
array(['Principe', 'Jose', ''], dtype=object)] |
19,424 | 1702.01302 | Andrei Shiryaev A | A.A. Khomich, O.S. Kudryavtsev, T.A. Dolenko, A.A. Shiryaev, A.V.
Fisenko, V.I. Konov, I.I. Vlasov | Anomalous enhancement of nanodiamond luminescence upon heating | null | Laser Physics Letters 14(2): 025702 (2017) | 10.1088/1612-202X/aa52f5 | null | cond-mat.mtrl-sci | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Characteristic photoluminescence (PL) of nanodiamonds (ND) of very different
origin (detonation, HPHT, extracted from meteorite) was studied in situ at high
temperatures in the range 20-450C. Luminescence was excited using 473 nm laser
and recorded in the range 500-800 nm. In contrast to decrease of point defect
PL in bulk diamond with temperature, we found that the nanodiamond luminescence
related to ND surface defects increases almost an order of magnitude upon
heating to 200-250 C. The observed effect reveals that water adsorbed on ND
surfaces efficiently quenches photoluminescence, water desorption on heating
leads to dramatic increase of the radiative de-excitation.
| [{'version': 'v1', 'created': 'Sat, 4 Feb 2017 15:40:55 GMT'}] | 2017-02-07 | [array(['Khomich', 'A. A.', ''], dtype=object)
array(['Kudryavtsev', 'O. S.', ''], dtype=object)
array(['Dolenko', 'T. A.', ''], dtype=object)
array(['Shiryaev', 'A. A.', ''], dtype=object)
array(['Fisenko', 'A. V.', ''], dtype=object)
array(['Konov', 'V. I.', ''], dtype=object)
array(['Vlasov', 'I. I.', ''], dtype=object)] |
19,425 | 2005.12417 | Alexander Kostinskiy | Alexander Yu. Kostinskiy, Andrei Vlasov and Mikhail Fridman | Calculation of the dynamics of the initiation of streamer flashes that
provide the NBE VHF signal profile and the VHF phase wave propagation
velocity | 19 pages, 9 figures | null | null | null | physics.ao-ph | http://creativecommons.org/licenses/by/4.0/ | In this supplementary article to Kostinkskiy et al. (2020), we evaluate how
it is possible to initiate and synchronize the start of a large number of
streamer flashes, which can provide a powerful VHF signal, in the time range of
~1-3 us. As described in Kostinskiy et al. (2020), we will assume streamer
flashes occur due to the voluminous network of 'air electrode' (Eth-volumes),
the number of which is dynamically supported in highly turbulent regions of a
thundercloud until an extensive air shower (EAS) passes through this region.
The first numerical estimates are given herein. In the near future we plan a
separate article based on these estimates, where we will present the main
points in more detail.
| [{'version': 'v1', 'created': 'Mon, 25 May 2020 21:41:01 GMT'}] | 2020-05-27 | [array(['Kostinskiy', 'Alexander Yu.', ''], dtype=object)
array(['Vlasov', 'Andrei', ''], dtype=object)
array(['Fridman', 'Mikhail', ''], dtype=object)] |
19,426 | 2301.09743 | Adam Ritchey | Adam M. Ritchey (Eureka Scientific), Edward B. Jenkins (Princeton
Univ.), J. Michael Shull (Univ. of Colorado), Blair D. Savage (Univ. of
Wisconsin), S. R. Federman (Univ. of Toledo), David L. Lambert (Univ. of
Texas at Austin) | The Distribution of Metallicities in the Local Galactic Interstellar
Medium | 34 pages, 14 figures, accepted for publication in ApJ | null | null | null | astro-ph.GA | http://creativecommons.org/licenses/by/4.0/ | In this investigation, we present an analysis of the metallicity distribution
that pertains to neutral gas in the local Galactic interstellar medium (ISM).
We derive relative ISM metallicities for a sample of 84 sight lines probing
diffuse atomic and molecular gas within 4 kpc of the Sun. Our analysis is
based, in large part, on column density measurements reported in the literature
for 22 different elements that are commonly studied in interstellar clouds. We
supplement the literature data with new column density determinations for
certain key elements and for several individual sight lines important to our
analysis. Our methodology involves comparing the relative gas-phase abundances
of many different elements for a given sight line to simultaneously determine
the strength of dust depletion in that direction and the overall metallicity
offset. We find that many sight lines probe multiple distinct gas regions with
different depletion properties, which complicates the metallicity analysis.
Nevertheless, our results provide clear evidence that the dispersion in the
metallicities of neutral interstellar clouds in the solar neighborhood is small
($\sim$0.10 dex) and only slightly larger than the typical measurement
uncertainties. We find no evidence for the existence of very low metallicity
gas (as has recently been reported by De Cia et al.) along any of the 84 sight
lines in our sample. Our results are consistent with a local Galactic ISM that
is well mixed and chemically homogeneous.
| [{'version': 'v1', 'created': 'Mon, 23 Jan 2023 22:12:14 GMT'}
{'version': 'v2', 'created': 'Fri, 12 May 2023 20:29:28 GMT'}] | 2023-05-16 | [array(['Ritchey', 'Adam M.', '', 'Eureka Scientific'], dtype=object)
array(['Jenkins', 'Edward B.', '', 'Princeton\n Univ.'], dtype=object)
array(['Shull', 'J. Michael', '', 'Univ. of Colorado'], dtype=object)
array(['Savage', 'Blair D.', '', 'Univ. of\n Wisconsin'], dtype=object)
array(['Federman', 'S. R.', '', 'Univ. of Toledo'], dtype=object)
array(['Lambert', 'David L.', '', 'Univ. of\n Texas at Austin'],
dtype=object) ] |
19,427 | 2112.08467 | A. Katherina Vivas | Kathy Vivas, Clara Mart\'inez-V\'azquez, Alistair Walker, Vasily
Belokurov, Ting Li, Denis Erkal | Variable Stars in the giant satellite galaxy Antlia 2 | Accepted for publication in ApJ | null | null | null | astro-ph.GA | http://creativecommons.org/licenses/by/4.0/ | We report 350 pulsating variable stars found in four DECam fields ($\sim 12$
sq. deg.) covering the Antlia 2 satellite galaxy. The sample of variables
includes 318 RR Lyrae stars and eight anomalous Cepheids in the galaxy.
Reclassification of several objects designated previously to be RR Lyrae as
Anomalous Cepheids gets rid of the satellite's stars intervening along the line
of sight. This in turn removes the need for prolific tidal disruption of the
dwarf, in agreement with the recently updated proper motion and peri-centre
measurements based on Gaia EDR3. There are also several bright foreground RR
Lyrae stars in the field, and two distant background variables located $\sim
45$ kpc behind Antlia 2. We found RR Lyrae stars over the full search area,
suggesting that the galaxy is very large and likely extends beyond our observed
area. The mean period of the RRab in Antlia 2 is 0.599 days, while the RRc have
a mean period of 0.368 days, indicating the galaxy is an
Oosterhoff-intermediate system. The distance to Antlia 2 based on the RR Lyrae
stars is $124.1$ kpc ($\mu_0=20.47$) with a dispersion of $5.4$ kpc. We
measured a clear distance gradient along the semi-major axis of the galaxy,
with the South-East side of Antlia 2 being $\sim13$ kpc farther away from the
North-West side. This elongation along the line of sight is likely due to the
ongoing tidal disruption of Ant 2.
| [{'version': 'v1', 'created': 'Wed, 15 Dec 2021 20:29:42 GMT'}] | 2021-12-17 | [array(['Vivas', 'Kathy', ''], dtype=object)
array(['Martínez-Vázquez', 'Clara', ''], dtype=object)
array(['Walker', 'Alistair', ''], dtype=object)
array(['Belokurov', 'Vasily', ''], dtype=object)
array(['Li', 'Ting', ''], dtype=object)
array(['Erkal', 'Denis', ''], dtype=object)] |
19,428 | 1309.6017 | Michael Bradford Williams | Michael Jablonski, Peter Petersen, Michael Bradford Williams | Linear stability of algebraic Ricci solitons | 42 pages, 3 figures, introduction revised and typos fixed, final
version to appear in Journal f\"ur die reine und angewandte Mathematik | null | 10.1515/crelle-2014-0027 | null | math.DG | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider a modified Ricci flow equation whose stationary solutions include
Einstein and Ricci soliton metrics, and we study the linear stability of those
solutions relative to the flow. After deriving various criteria that imply
linear stability, we turn our attention to left-invariant soliton metrics on
(non-compact) simply connected solvable Lie groups and prove linear stability
of many such metrics. These include an open set of two-step solvsolitons, all
two-step nilsolitons, two infinite families of three-step solvable Einstein
metrics, all nilsolitons of dimensions six or less, and all solvable Einstein
metrics of dimension seven or less with codimension-one nilradical. For each
linearly stable metric, dynamical stability follows a generalization of the
techniques of Guenther, Isenberg, and Knopf.
| [{'version': 'v1', 'created': 'Tue, 24 Sep 2013 00:45:08 GMT'}
{'version': 'v2', 'created': 'Wed, 10 Sep 2014 18:26:38 GMT'}] | 2014-09-11 | [array(['Jablonski', 'Michael', ''], dtype=object)
array(['Petersen', 'Peter', ''], dtype=object)
array(['Williams', 'Michael Bradford', ''], dtype=object)] |
19,429 | 2109.03605 | Philipp Gersema M.Sc. | Kai K. Voges, Philipp Gersema, Torsten Hartmann, Silke Ospelkaus,
Alessandro Zenesini | Hyperfine dependent atom-molecule loss analyzed by the analytic solution
of few-body loss equations | null | Phys. Rev. Research, 6 June 2022 | 10.1103/PhysRevResearch.4.023184 | 4, 023184 | physics.atom-ph cond-mat.quant-gas | http://creativecommons.org/licenses/by/4.0/ | We prepare mixtures of ultracold $^{39}$K atoms in various hyperfine spin
states and $^{23}$Na$^{39}$K molecules in an optical dipole trap at a fixed
magnetic field and study inelastic two-body atom-molecule collisions. We
observe atom-molecule losses that are hyperfine dependent with a two-body loss
rate far below the universal limit. We analyze the two-body loss dynamics based
on the derivation of general and easy applicable analytic solutions for the
differential equations describing the loss of an arbitrary number $\gamma$ of
particles in a single collisional event.
| [{'version': 'v1', 'created': 'Wed, 8 Sep 2021 12:57:00 GMT'}
{'version': 'v2', 'created': 'Thu, 12 May 2022 15:49:45 GMT'}] | 2022-10-05 | [array(['Voges', 'Kai K.', ''], dtype=object)
array(['Gersema', 'Philipp', ''], dtype=object)
array(['Hartmann', 'Torsten', ''], dtype=object)
array(['Ospelkaus', 'Silke', ''], dtype=object)
array(['Zenesini', 'Alessandro', ''], dtype=object)] |
19,430 | 2303.04692 | Kenji Fukushima | Shi Chen, Kenji Fukushima, Zebin Qiu | Magnetic enhancement of baryon confinement modeled via a deformed
Skyrmion | 15 pages, 4 figures | null | 10.1016/j.physletb.2023.137992 | null | hep-th nucl-th | http://creativecommons.org/licenses/by/4.0/ | We discuss the baryon properties under a strong magnetic field. We adopt the
Skyrme model and calculate the magnetic field dependence of the mass and the
pressure distribution in the soliton. We elucidate a magnetically induced
contribution to the pressure sum rule and interpret it as an extra confining
force. We also quantize the soliton to estimate the difference between the
proton and the neutron and find a simple relation between the pressure and the
mass differences.
| [{'version': 'v1', 'created': 'Wed, 8 Mar 2023 16:33:13 GMT'}] | 2023-06-28 | [array(['Chen', 'Shi', ''], dtype=object)
array(['Fukushima', 'Kenji', ''], dtype=object)
array(['Qiu', 'Zebin', ''], dtype=object)] |
19,431 | 0811.4418 | Yinguo Xiao | Y. Xiao, Y. Su, R. Mittal, T. Chatterji, T. Hansen, C.M.N. Kumar, S.
Matsuishi, H. Hosono, and Th. Brueckel | Magnetic order in CaFe1-xCoxAsF (x = 0, 0.06, 0.12) superconductor
compounds | 4pages, 4figures | Phys. Rev. B 79, 060504(R) (2009) | 10.1103/PhysRevB.79.060504 | null | cond-mat.supr-con | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A Neutron Powder Diffraction (NPD) experiment has been performed to
investigate the structural phase transition and magnetic order in CaFe1-xCoxAsF
superconductor compounds (x = 0, 0.06, 0.12). The parent compound CaFeAsF
undergoes a tetragonal to orthorhombic phase transition at 134(3) K, while the
magnetic order in form of a spin-density wave (SDW) sets in at 114(3) K. The
antiferromagnetic structure of the parent compound has been determined with a
unique propagation vector k = (1,0,1) and the Fe saturation moment of 0.49(5)uB
aligned along the long a-axis. With increasing Co doping, the long range
antiferromagnetic order has been observed to coexist with superconductivity in
the orthorhombic phase of the underdoped CaFe0.94Co0.06AsF with a reduced Fe
moment (0.15(5)uB). Magnetic order is completely suppressed in optimally doped
CaFe0.88Co0.12AsF. We argue that the coexistence of SDW and superconductivity
might be related to mesoscopic phase separation.
| [{'version': 'v1', 'created': 'Wed, 26 Nov 2008 20:47:10 GMT'}
{'version': 'v2', 'created': 'Wed, 26 Nov 2008 21:04:43 GMT'}] | 2009-02-24 | [array(['Xiao', 'Y.', ''], dtype=object)
array(['Su', 'Y.', ''], dtype=object)
array(['Mittal', 'R.', ''], dtype=object)
array(['Chatterji', 'T.', ''], dtype=object)
array(['Hansen', 'T.', ''], dtype=object)
array(['Kumar', 'C. M. N.', ''], dtype=object)
array(['Matsuishi', 'S.', ''], dtype=object)
array(['Hosono', 'H.', ''], dtype=object)
array(['Brueckel', 'Th.', ''], dtype=object)] |
19,432 | hep-ex/0301019 | Teruki Kamon | T. Kamon | Prospects of Discovery for Supersymmetry at the Tevatron | 16 pages, latex, 4 figures, talk at 10th International Conference on
Supersymmetry and Unification of Fundamental Interactions (SUSY02),June
17-23, 2002, DESY, Hamburg, Germany | null | null | null | hep-ex | null | We summarize a discovery potential for supersymmetric particles at the \ppbar
collider of Tevatron with center-of-mass energy \sqrt{s} = 2 TeV and integrated
luminosity $\intlum$ = 15-30 \invfb. Any direct search is kinematically limited
to below 450 \mgev. We, however, have a unique opportunity to test various
supersymmetric scenarios by a measurement of the branching ratio for the rare
decay mode \bsmumu. Using the background estimate in the CDF analysis of
\bsmumu in Run I, we investigate the prospects for studying this mode in Run
II. CDF would be sensitive to this decay for a branching ratio > 1.2 \times
10^{-8} with 15 \invfb (or, if a similar analysis holds for \Dzero, >6.5\times
10^{-9} for the combined data). For \tanb > 30, the \bsmumu search can probe
the SUSY parameter space that cannot be probed by direct production of SUSY
particles at Run II. An observation of \bsmumu with a large branching ratio >
7(14) \times 10^{-8} (feasible with only 2 \invfb) would be sufficient to
exclude the mSUGRA model for \tan\beta \leq 50 (55) including other
experimental constraints. For some models, the branching ratio can be large
enough to be detected even for small $\tan\beta$ and large \mhalf.
| [{'version': 'v1', 'created': 'Mon, 13 Jan 2003 21:48:40 GMT'}] | 2007-05-23 | [array(['Kamon', 'T.', ''], dtype=object)] |
19,433 | 2301.08460 | Shaofeng Jiang | Lingxiao Huang, Shaofeng H.-C. Jiang, Jian Li, Xuan Wu | Coresets for Clustering with General Assignment Constraints | null | null | null | null | cs.DS cs.CG | http://creativecommons.org/licenses/by/4.0/ | Designing small-sized \emph{coresets}, which approximately preserve the costs
of the solutions for large datasets, has been an important research direction
for the past decade. We consider coreset construction for a variety of general
constrained clustering problems. We significantly extend and generalize the
results of a very recent paper (Braverman et al., FOCS'22), by demonstrating
that the idea of hierarchical uniform sampling (Chen, SICOMP'09; Braverman et
al., FOCS'22) can be applied to efficiently construct coresets for a very
general class of constrained clustering problems with general assignment
constraints, including capacity constraints on cluster centers, and assignment
structure constraints for data points (modeled by a convex body $\mathcal{B})$.
Our main theorem shows that a small-sized $\epsilon$-coreset exists as long
as a complexity measure $\mathsf{Lip}(\mathcal{B})$ of the structure
constraint, and the \emph{covering exponent} $\Lambda_\epsilon(\mathcal{X})$
for metric space $(\mathcal{X},d)$ are bounded. The complexity measure
$\mathsf{Lip}(\mathcal{B})$ for convex body $\mathcal{B}$ is the Lipschitz
constant of a certain transportation problem constrained in $\mathcal{B}$,
called \emph{optimal assignment transportation problem}. We prove nontrivial
upper bounds of $\mathsf{Lip}(\mathcal{B})$ for various polytopes, including
the general matroid basis polytopes, and laminar matroid polytopes (with better
bound). As an application of our general theorem, we construct the first
coreset for the fault-tolerant clustering problem (with or without capacity
upper/lower bound) for the above metric spaces, in which the fault-tolerance
requirement is captured by a uniform matroid basis polytope.
| [{'version': 'v1', 'created': 'Fri, 20 Jan 2023 08:02:12 GMT'}
{'version': 'v2', 'created': 'Mon, 23 Jan 2023 11:38:08 GMT'}] | 2023-01-24 | [array(['Huang', 'Lingxiao', ''], dtype=object)
array(['Jiang', 'Shaofeng H. -C.', ''], dtype=object)
array(['Li', 'Jian', ''], dtype=object)
array(['Wu', 'Xuan', ''], dtype=object)] |
19,434 | alg-geom/9504012 | Dieter Kotschick | D. Kotschick | On irreducible four--manifolds | AMSLaTeX | null | null | null | alg-geom math.AG | null | We show that minimal symplectic 4--manifolds with $b_2^+ >1$ and with
residually finite fundamental groups are irreducible. We also give examples of
irreducible orientable four--manifolds with indefinite intersection forms which
are not almost complex with respect to either orientation.
| [{'version': 'v1', 'created': 'Sun, 23 Apr 1995 19:15:20 GMT'}] | 2008-02-03 | [array(['Kotschick', 'D.', ''], dtype=object)] |
19,435 | 0801.0809 | Alexander Konovalov | A.B. Konovalov, A.G. Krivokhata | Symmetric subgroups in modular group algebras | 5 pages, translated from original journal publication in Russian | Nauk. Visn. Uzhgorod. Univ., Ser. Mat., 9 (2004), 20-24 | null | null | math.RA math.GR | null | Let V(KG) be a normalised unit group of the modular group algebra of a finite
p-group G over the field K of p elements. We introduce a notion of symmetric
subgroups in V(KG) as subgroups invariant under the action of the classical
involution of the group algebra KG. We study properties of symmetric subgroups
and construct a counterexample to the conjecture by V.Bovdi, which states that
V(KG)=<G,S*>, where S* is a set of symmetric units of V(KG).
| [{'version': 'v1', 'created': 'Sat, 5 Jan 2008 14:00:53 GMT'}] | 2008-01-08 | [array(['Konovalov', 'A. B.', ''], dtype=object)
array(['Krivokhata', 'A. G.', ''], dtype=object)] |
19,436 | 2203.01355 | Toshiki Saito | Toshiki Saito, Shuro Takano, Nanase Harada, Taku Nakajima, Eva
Schinnerer, Daizhong Liu, Akio Taniguchi, Takuma Izumi, Yumi Watanabe,
Kazuharu Bamba, Eric Herbst, Kotaro Kohno, Yuri Nishimura, Sophia Stuber,
Yoichi Tamura, and Tomoka Tosaki | The Kiloparsec-scale Neutral Atomic Carbon Outflow in the Nearby Type-2
Seyfert Galaxy NGC 1068: Evidence for Negative AGN Feedback | 12 pages, 5 figures, accepted for publication in The Astrophysical
Journal Letters | null | 10.3847/2041-8213/ac59ae | null | astro-ph.GA | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Active galactic nucleus (AGN) feedback is postulated as a key mechanism for
regulating star formation within galaxies. Studying the physical properties of
the outflowing gas from AGN is thus crucial for understanding the co-evolution
of galaxies and supermassive black holes. Here we report 55 pc resolution ALMA
neutral atomic carbon [CI] $^3P_1\text{-}^3P_0$ observations toward the central
1 kpc of the nearby type-2 Seyfert galaxy NGC 1068, supplemented by 55 pc
resolution CO($J=1\text{-}0$) observations. We find that [CI] emission within
the central kpc is strongly enhanced by a factor of $>$5 compared to the
typical [CI]/CO intensity ratio of $\sim$0.2 for nearby starburst galaxies (in
units of brightness temperature). The most [CI]-enhanced gas (ratio $>$ 1)
exhibits a kpc-scale elongated structure centered at the AGN that matches the
known biconical ionized gas outflow entraining molecular gas in the disk. A
truncated, decelerating bicone model explains well the kinematics of the
elongated structure, indicating that the [CI] enhancement is predominantly
driven by the interaction between the ISM in the disk and the highly inclined
ionized gas outflow (which is likely driven by the radio jet). Our results
strongly favor the "CO dissociation scenario" rather than the "in-situ C
formation" one which prefers a perfect bicone geometry. We suggest that the
high [CI]/CO intensity ratio gas in NGC 1068 directly traces ISM in the disk
that is currently dissociated and entrained by the jet and the outflow, i.e.,
the "negative" effect of the AGN feedback.
| [{'version': 'v1', 'created': 'Wed, 2 Mar 2022 19:02:23 GMT'}] | 2022-03-30 | [array(['Saito', 'Toshiki', ''], dtype=object)
array(['Takano', 'Shuro', ''], dtype=object)
array(['Harada', 'Nanase', ''], dtype=object)
array(['Nakajima', 'Taku', ''], dtype=object)
array(['Schinnerer', 'Eva', ''], dtype=object)
array(['Liu', 'Daizhong', ''], dtype=object)
array(['Taniguchi', 'Akio', ''], dtype=object)
array(['Izumi', 'Takuma', ''], dtype=object)
array(['Watanabe', 'Yumi', ''], dtype=object)
array(['Bamba', 'Kazuharu', ''], dtype=object)
array(['Herbst', 'Eric', ''], dtype=object)
array(['Kohno', 'Kotaro', ''], dtype=object)
array(['Nishimura', 'Yuri', ''], dtype=object)
array(['Stuber', 'Sophia', ''], dtype=object)
array(['Tamura', 'Yoichi', ''], dtype=object)
array(['Tosaki', 'Tomoka', ''], dtype=object)] |
19,437 | cond-mat/0209447 | Herbert Schmidt | H. Schmidt, J. F. Zasadzinski, K. E. Gray, and D. G. Hinks | Break-Junction Tunneling on MgB_2 | 9 pages, 10 pictures, accepted for publication in a special issue of
Physica C on MgB2, minor changes | Physica C 385 (2003) 221-232 | 10.1016/S0921-4534(02)02317-1 | null | cond-mat.supr-con | null | Tunneling data on magnesium diboride, MgB_2, are reviewed with a particular
focus on superconductor-insulator-superconductor (SIS) junctions formed by a
break-junction method. The collective tunneling literature reveals two distinct
energy scales, a large gap, Delta_L~7.2 meV, close to the expected BCS value,
and a small gap, Delta_S~2.4 meV. The SIS break junctions show clearly that the
small gap closes near the bulk critical temperature, T_c=39 K. The SIS spectra
allow proximity effects to be ruled out as the cause for the small gap and
therefore make a strong case that MgB_2 is a coupled, two-band superconductor.
While the break junctions sometimes reveal parallel contributions to the
conductance from both bands, it is more often found that Delta_S dominates the
spectra. In these cases, a subtle feature is observed near Delta_S+Delta_L that
is reminiscent of strong-coupling effects. This feature is consistent with
quasiparticle scattering contributions to the interband coupling which provides
an important insight into the nature of two-band superconductivity in MgB_2.
| [{'version': 'v1', 'created': 'Wed, 18 Sep 2002 21:49:42 GMT'}
{'version': 'v2', 'created': 'Mon, 4 Nov 2002 22:22:17 GMT'}] | 2009-11-07 | [array(['Schmidt', 'H.', ''], dtype=object)
array(['Zasadzinski', 'J. F.', ''], dtype=object)
array(['Gray', 'K. E.', ''], dtype=object)
array(['Hinks', 'D. G.', ''], dtype=object)] |
19,438 | 2106.03171 | Lei Qi | Yue Wang, Lei Qi, Yinghuan Shi, Yang Gao | Feature-based Style Randomization for Domain Generalization | To appear in IEEE Transactions on Circuits and Systems for Video
Technology (TCSVT) | null | null | null | cs.CV | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | As a recent noticeable topic, domain generalization (DG) aims to first learn
a generic model on multiple source domains and then directly generalize to an
arbitrary unseen target domain without any additional adaption. In previous DG
models, by generating virtual data to supplement observed source domains, the
data augmentation based methods have shown its effectiveness. To simulate the
possible unseen domains, most of them enrich the diversity of original data via
image-level style transformation. However, we argue that the potential styles
are hard to be exhaustively illustrated and fully augmented due to the limited
referred styles, leading the diversity could not be always guaranteed. Unlike
image-level augmentation, we in this paper develop a simple yet effective
feature-based style randomization module to achieve feature-level augmentation,
which can produce random styles via integrating random noise into the original
style. Compared with existing image-level augmentation, our feature-level
augmentation favors a more goal-oriented and sample-diverse way. Furthermore,
to sufficiently explore the efficacy of the proposed module, we design a novel
progressive training strategy to enable all parameters of the network to be
fully trained. Extensive experiments on three standard benchmark datasets,
i.e., PACS, VLCS and Office-Home, highlight the superiority of our method
compared to the state-of-the-art methods.
| [{'version': 'v1', 'created': 'Sun, 6 Jun 2021 16:34:44 GMT'}
{'version': 'v2', 'created': 'Wed, 16 Feb 2022 13:54:26 GMT'}] | 2022-02-17 | [array(['Wang', 'Yue', ''], dtype=object)
array(['Qi', 'Lei', ''], dtype=object)
array(['Shi', 'Yinghuan', ''], dtype=object)
array(['Gao', 'Yang', ''], dtype=object)] |
19,439 | 2102.13585 | Brant M. Johnson | U.A. Acharya, C. Aidala, Y. Akiba, M. Alfred, V. Andrieux, N. Apadula,
H. Asano, B. Azmoun, V. Babintsev, N.S. Bandara, K.N. Barish, S. Bathe, A.
Bazilevsky, M. Beaumier, R. Belmont, A. Berdnikov, Y. Berdnikov, L. Bichon,
B. Blankenship, D.S. Blau, J.S. Bok, M.L. Brooks, J. Bryslawskyj, V.
Bumazhnov, S. Campbell, V. Canoa Roman, R. Cervantes, C.Y. Chi, M. Chiu, I.J.
Choi, J.B. Choi, Z. Citron, M. Connors, R. Corliss, Y. Corrales N. Cronin, M.
Csan\'ad, T. Cs\"org\H{o}, T.W. Danley, M.S. Daugherity, G. David, K.
DeBlasio, K. Dehmelt, A. Denisov, A. Deshpande, E.J. Desmond, A. Dion, D.
Dixit, J.H. Do, A. Drees, K.A. Drees, J.M. Durham, A. Durum, A. Enokizono, H.
En'yo, R. Esha, S. Esumi, B. Fadem, W. Fan, N. Feege, D.E. Fields, M. Finger,
M. Finger, Jr., D. Fitzgerald, S.L. Fokin, J.E. Frantz, A. Franz, A.D.
Frawley, Y. Fukuda, C. Gal, P. Gallus, P. Garg, H. Ge, M. Giles, F. Giordano,
Y. Goto, N. Grau, S.V. Greene, M. Grosse Perdekamp, T. Gunji, H. Guragain, T.
Hachiya, J.S. Haggerty, K.I. Hahn, H. Hamagaki, H.F. Hamilton, S.Y. Han, J.
Hanks, M. Harvey, S. Hasegawa, T.O.S. Haseler, X. He, T.K. Hemmick, J.C.
Hill, K. Hill, A. Hodges, R.S. Hollis, K. Homma, B. Hong, T. Hoshino, N.
Hotvedt, J. Huang, S. Huang, K. Imai, M. Inaba, A. Iordanova, D. Isenhower,
D. Ivanishchev, B.V. Jacak, M. Jezghani, Z. Ji, X. Jiang, B.M. Johnson, D.
Jouan, D.S. Jumper, J.H. Kang, D. Kapukchyan, S. Karthas, D. Kawall, A.V.
Kazantsev, V. Khachatryan, A. Khanzadeev, A. Khatiwada, C. Kim, E.-J. Kim, M.
Kim, D. Kincses, A. Kingan, E. Kistenev, J. Klatsky, P. Kline, T. Koblesky,
D. Kotov, S. Kudo, B. Kurgyis, K. Kurita, Y. Kwon, J.G. Lajoie, D. Larionova,
A. Lebedev, S. Lee, S.H. Lee, M.J. Leitch, Y.H. Leung, N.A. Lewis, X. Li,
S.H. Lim, M.X. Liu, V.-R. Loggins, S. L\"ok\"os, D.A. Loomis, K. Lovasz, D.
Lynch, T. Majoros, Y.I. Makdisi, M. Makek, V.I. Manko, E. Mannel, M.
McCumber, P.L. McGaughey, D. McGlinchey, C. McKinney, M. Mendoza, A.C.
Mignerey, A. Milov, D.K. Mishra, J.T. Mitchell, Iu. Mitrankov, M. Mitrankova,
G. Mitsuka, S. Miyasaka, S. Mizuno, M.M. Mondal, P. Montuenga, T. Moon, D.P.
Morrison, B. Mulilo, T. Murakami, J. Murata, K. Nagai, K. Nagashima, T.
Nagashima, J.L. Nagle, M.I. Nagy, I. Nakagawa, K. Nakano, C. Nattrass, S.
Nelson, T. Niida, R. Nouicer, T. Nov\'ak, N. Novitzky, G. Nukazuka, A.S.
Nyanin, E. O'Brien, C.A. Ogilvie, J.D. Orjuela Koop, J.D. Osborn, A.
Oskarsson, G.J. Ottino, K. Ozawa, V. Pantuev, V. Papavassiliou, J.S. Park, S.
Park, S.F. Pate, M. Patel, W. Peng, D.V. Perepelitsa, G.D.N. Perera, D.Yu.
Peressounko, C.E. PerezLara, J. Perry, R. Petti, M. Phipps, C. Pinkenburg,
R.P. Pisani, M. Potekhin, A. Pun, M.L. Purschke, P.V. Radzevich, N.
Ramasubramanian, K.F. Read, D. Reynolds, V. Riabov, Y. Riabov, D. Richford,
T. Rinn, S.D. Rolnick, M. Rosati, Z. Rowan, J. Runchey, A.S. Safonov, T.
Sakaguchi, H. Sako, V. Samsonov, M. Sarsour, S. Sato, B. Schaefer, B.K.
Schmoll, K. Sedgwick, R. Seidl, A. Sen, R. Seto, A. Sexton, D Sharma, D.
Sharma, I. Shein, T.-A. Shibata, K. Shigaki, M. Shimomura, T. Shioya, P.
Shukla, A. Sickles, C.L. Silva, D. Silvermyr, B.K. Singh, C.P. Singh, V.
Singh, M. Slune\v{c}ka, K.L. Smith, M. Snowball, R.A. Soltz, W.E. Sondheim,
S.P. Sorensen, I.V. Sourikova, P.W. Stankus, S.P. Stoll, T. Sugitate, A.
Sukhanov, T. Sumita, J. Sun, Z. Sun, J. Sziklai, K. Tanida, M.J. Tannenbaum,
S. Tarafdar, A. Taranenko, G. Tarnai, R. Tieulent, A. Timilsina, T. Todoroki,
M. Tom\'a\v{s}ek, C.L. Towell, R.S. Towell, I. Tserruya, Y. Ueda, B. Ujvari,
H.W. van Hecke, J. Velkovska, M. Virius, V. Vrba, N. Vukman, X.R. Wang, Y.S.
Watanabe, C.P. Wong, C.L. Woody, C. Xu, Q. Xu, L. Xue, S. Yalcin, Y.L.
Yamaguchi, H. Yamamoto, A. Yanovich, J.H. Yoo, I. Yoon, H. Yu, I.E.
Yushmanov, W.A. Zajc, A. Zelenski, S. Zharko, L. Zou | Probing gluon spin-momentum correlations in transversely polarized
protons through midrapidity isolated direct photons in $p^\uparrow+p$
collisions at $\sqrt{s}=200$ GeV | 312 authors from 68 institutions, 8 pages, 2 figures, 1 table, 2015
data. v2 is version accepted by Physical Review Letters. Plain text data
tables for the points plotted in figures for this and previous PHENIX
publications are (or will be) publicly available at
http://www.phenix.bnl.gov/papers.html | null | 10.1103/PhysRevLett.127.162001 | null | hep-ex nucl-ex | http://creativecommons.org/licenses/by/4.0/ | Studying spin-momentum correlations in hadronic collisions offers a glimpse
into a three-dimensional picture of proton structure. The transverse
single-spin asymmetry for midrapidity isolated direct photons in $p^\uparrow+p$
collisions at $\sqrt{s}=200$ GeV is measured with the PHENIX detector at the
Relativistic Heavy Ion Collider (RHIC). Because direct photons in particular
are produced from the hard scattering and do not interact via the strong force,
this measurement is a clean probe of initial-state spin-momentum correlations
inside the proton and is in particular sensitive to gluon interference effects
within the proton. This is the first time direct photons have been used as a
probe of spin-momentum correlations at RHIC. The uncertainties on the results
are a fifty-fold improvement with respect to those of the one prior measurement
for the same observable, from the Fermilab E704 experiment. These results
constrain gluon spin-momentum correlations in transversely polarized protons.
| [{'version': 'v1', 'created': 'Fri, 26 Feb 2021 16:50:39 GMT'}
{'version': 'v2', 'created': 'Fri, 20 Aug 2021 14:27:58 GMT'}] | 2021-10-27 | [array(['Acharya', 'U. A.', ''], dtype=object)
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array(['Asano', 'H.', ''], dtype=object)
array(['Azmoun', 'B.', ''], dtype=object)
array(['Babintsev', 'V.', ''], dtype=object)
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array(['Berdnikov', 'Y.', ''], dtype=object)
array(['Bichon', 'L.', ''], dtype=object)
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array(['Roman', 'V. Canoa', ''], dtype=object)
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array(['Chi', 'C. Y.', ''], dtype=object)
array(['Chiu', 'M.', ''], dtype=object)
array(['Choi', 'I. J.', ''], dtype=object)
array(['Choi', 'J. B.', ''], dtype=object)
array(['Citron', 'Z.', ''], dtype=object)
array(['Connors', 'M.', ''], dtype=object)
array(['Corliss', 'R.', ''], dtype=object)
array(['Cronin', 'Y. Corrales N.', ''], dtype=object)
array(['Csanád', 'M.', ''], dtype=object)
array(['Csörgő', 'T.', ''], dtype=object)
array(['Danley', 'T. W.', ''], dtype=object)
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array(['DeBlasio', 'K.', ''], dtype=object)
array(['Dehmelt', 'K.', ''], dtype=object)
array(['Denisov', 'A.', ''], dtype=object)
array(['Deshpande', 'A.', ''], dtype=object)
array(['Desmond', 'E. J.', ''], dtype=object)
array(['Dion', 'A.', ''], dtype=object)
array(['Dixit', 'D.', ''], dtype=object)
array(['Do', 'J. H.', ''], dtype=object)
array(['Drees', 'A.', ''], dtype=object)
array(['Drees', 'K. A.', ''], dtype=object)
array(['Durham', 'J. M.', ''], dtype=object)
array(['Durum', 'A.', ''], dtype=object)
array(['Enokizono', 'A.', ''], dtype=object)
array(["En'yo", 'H.', ''], dtype=object)
array(['Esha', 'R.', ''], dtype=object)
array(['Esumi', 'S.', ''], dtype=object)
array(['Fadem', 'B.', ''], dtype=object)
array(['Fan', 'W.', ''], dtype=object)
array(['Feege', 'N.', ''], dtype=object)
array(['Fields', 'D. E.', ''], dtype=object)
array(['Finger', 'M.', ''], dtype=object)
array(['Finger,', 'M.', 'Jr.'], dtype=object)
array(['Fitzgerald', 'D.', ''], dtype=object)
array(['Fokin', 'S. L.', ''], dtype=object)
array(['Frantz', 'J. E.', ''], dtype=object)
array(['Franz', 'A.', ''], dtype=object)
array(['Frawley', 'A. D.', ''], dtype=object)
array(['Fukuda', 'Y.', ''], dtype=object)
array(['Gal', 'C.', ''], dtype=object)
array(['Gallus', 'P.', ''], dtype=object)
array(['Garg', 'P.', ''], dtype=object)
array(['Ge', 'H.', ''], dtype=object)
array(['Giles', 'M.', ''], dtype=object)
array(['Giordano', 'F.', ''], dtype=object)
array(['Goto', 'Y.', ''], dtype=object)
array(['Grau', 'N.', ''], dtype=object)
array(['Greene', 'S. V.', ''], dtype=object)
array(['Perdekamp', 'M. Grosse', ''], dtype=object)
array(['Gunji', 'T.', ''], dtype=object)
array(['Guragain', 'H.', ''], dtype=object)
array(['Hachiya', 'T.', ''], dtype=object)
array(['Haggerty', 'J. S.', ''], dtype=object)
array(['Hahn', 'K. I.', ''], dtype=object)
array(['Hamagaki', 'H.', ''], dtype=object)
array(['Hamilton', 'H. F.', ''], dtype=object)
array(['Han', 'S. Y.', ''], dtype=object)
array(['Hanks', 'J.', ''], dtype=object)
array(['Harvey', 'M.', ''], dtype=object)
array(['Hasegawa', 'S.', ''], dtype=object)
array(['Haseler', 'T. O. S.', ''], dtype=object)
array(['He', 'X.', ''], dtype=object)
array(['Hemmick', 'T. K.', ''], dtype=object)
array(['Hill', 'J. C.', ''], dtype=object)
array(['Hill', 'K.', ''], dtype=object)
array(['Hodges', 'A.', ''], dtype=object)
array(['Hollis', 'R. S.', ''], dtype=object)
array(['Homma', 'K.', ''], dtype=object)
array(['Hong', 'B.', ''], dtype=object)
array(['Hoshino', 'T.', ''], dtype=object)
array(['Hotvedt', 'N.', ''], dtype=object)
array(['Huang', 'J.', ''], dtype=object)
array(['Huang', 'S.', ''], dtype=object)
array(['Imai', 'K.', ''], dtype=object)
array(['Inaba', 'M.', ''], dtype=object)
array(['Iordanova', 'A.', ''], dtype=object)
array(['Isenhower', 'D.', ''], dtype=object)
array(['Ivanishchev', 'D.', ''], dtype=object)
array(['Jacak', 'B. V.', ''], dtype=object)
array(['Jezghani', 'M.', ''], dtype=object)
array(['Ji', 'Z.', ''], dtype=object)
array(['Jiang', 'X.', ''], dtype=object)
array(['Johnson', 'B. M.', ''], dtype=object)
array(['Jouan', 'D.', ''], dtype=object)
array(['Jumper', 'D. S.', ''], dtype=object)
array(['Kang', 'J. H.', ''], dtype=object)
array(['Kapukchyan', 'D.', ''], dtype=object)
array(['Karthas', 'S.', ''], dtype=object)
array(['Kawall', 'D.', ''], dtype=object)
array(['Kazantsev', 'A. V.', ''], dtype=object)
array(['Khachatryan', 'V.', ''], dtype=object)
array(['Khanzadeev', 'A.', ''], dtype=object)
array(['Khatiwada', 'A.', ''], dtype=object)
array(['Kim', 'C.', ''], dtype=object)
array(['Kim', 'E. -J.', ''], dtype=object)
array(['Kim', 'M.', ''], dtype=object)
array(['Kincses', 'D.', ''], dtype=object)
array(['Kingan', 'A.', ''], dtype=object)
array(['Kistenev', 'E.', ''], dtype=object)
array(['Klatsky', 'J.', ''], dtype=object)
array(['Kline', 'P.', ''], dtype=object)
array(['Koblesky', 'T.', ''], dtype=object)
array(['Kotov', 'D.', ''], dtype=object)
array(['Kudo', 'S.', ''], dtype=object)
array(['Kurgyis', 'B.', ''], dtype=object)
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array(['Kwon', 'Y.', ''], dtype=object)
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array(['Makdisi', 'Y. I.', ''], dtype=object)
array(['Makek', 'M.', ''], dtype=object)
array(['Manko', 'V. I.', ''], dtype=object)
array(['Mannel', 'E.', ''], dtype=object)
array(['McCumber', 'M.', ''], dtype=object)
array(['McGaughey', 'P. L.', ''], dtype=object)
array(['McGlinchey', 'D.', ''], dtype=object)
array(['McKinney', 'C.', ''], dtype=object)
array(['Mendoza', 'M.', ''], dtype=object)
array(['Mignerey', 'A. C.', ''], dtype=object)
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array(['Mishra', 'D. K.', ''], dtype=object)
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array(['Mitrankova', 'M.', ''], dtype=object)
array(['Mitsuka', 'G.', ''], dtype=object)
array(['Miyasaka', 'S.', ''], dtype=object)
array(['Mizuno', 'S.', ''], dtype=object)
array(['Mondal', 'M. M.', ''], dtype=object)
array(['Montuenga', 'P.', ''], dtype=object)
array(['Moon', 'T.', ''], dtype=object)
array(['Morrison', 'D. P.', ''], dtype=object)
array(['Mulilo', 'B.', ''], dtype=object)
array(['Murakami', 'T.', ''], dtype=object)
array(['Murata', 'J.', ''], dtype=object)
array(['Nagai', 'K.', ''], dtype=object)
array(['Nagashima', 'K.', ''], dtype=object)
array(['Nagashima', 'T.', ''], dtype=object)
array(['Nagle', 'J. L.', ''], dtype=object)
array(['Nagy', 'M. I.', ''], dtype=object)
array(['Nakagawa', 'I.', ''], dtype=object)
array(['Nakano', 'K.', ''], dtype=object)
array(['Nattrass', 'C.', ''], dtype=object)
array(['Nelson', 'S.', ''], dtype=object)
array(['Niida', 'T.', ''], dtype=object)
array(['Nouicer', 'R.', ''], dtype=object)
array(['Novák', 'T.', ''], dtype=object)
array(['Novitzky', 'N.', ''], dtype=object)
array(['Nukazuka', 'G.', ''], dtype=object)
array(['Nyanin', 'A. S.', ''], dtype=object)
array(["O'Brien", 'E.', ''], dtype=object)
array(['Ogilvie', 'C. A.', ''], dtype=object)
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array(['Rinn', 'T.', ''], dtype=object)
array(['Rolnick', 'S. D.', ''], dtype=object)
array(['Rosati', 'M.', ''], dtype=object)
array(['Rowan', 'Z.', ''], dtype=object)
array(['Runchey', 'J.', ''], dtype=object)
array(['Safonov', 'A. S.', ''], dtype=object)
array(['Sakaguchi', 'T.', ''], dtype=object)
array(['Sako', 'H.', ''], dtype=object)
array(['Samsonov', 'V.', ''], dtype=object)
array(['Sarsour', 'M.', ''], dtype=object)
array(['Sato', 'S.', ''], dtype=object)
array(['Schaefer', 'B.', ''], dtype=object)
array(['Schmoll', 'B. K.', ''], dtype=object)
array(['Sedgwick', 'K.', ''], dtype=object)
array(['Seidl', 'R.', ''], dtype=object)
array(['Sen', 'A.', ''], dtype=object)
array(['Seto', 'R.', ''], dtype=object)
array(['Sexton', 'A.', ''], dtype=object)
array(['Sharma', 'D', ''], dtype=object)
array(['Sharma', 'D.', ''], dtype=object)
array(['Shein', 'I.', ''], dtype=object)
array(['Shibata', 'T. -A.', ''], dtype=object)
array(['Shigaki', 'K.', ''], dtype=object)
array(['Shimomura', 'M.', ''], dtype=object)
array(['Shioya', 'T.', ''], dtype=object)
array(['Shukla', 'P.', ''], dtype=object)
array(['Sickles', 'A.', ''], dtype=object)
array(['Silva', 'C. L.', ''], dtype=object)
array(['Silvermyr', 'D.', ''], dtype=object)
array(['Singh', 'B. K.', ''], dtype=object)
array(['Singh', 'C. P.', ''], dtype=object)
array(['Singh', 'V.', ''], dtype=object)
array(['Slunečka', 'M.', ''], dtype=object)
array(['Smith', 'K. L.', ''], dtype=object)
array(['Snowball', 'M.', ''], dtype=object)
array(['Soltz', 'R. A.', ''], dtype=object)
array(['Sondheim', 'W. E.', ''], dtype=object)
array(['Sorensen', 'S. P.', ''], dtype=object)
array(['Sourikova', 'I. V.', ''], dtype=object)
array(['Stankus', 'P. W.', ''], dtype=object)
array(['Stoll', 'S. P.', ''], dtype=object)
array(['Sugitate', 'T.', ''], dtype=object)
array(['Sukhanov', 'A.', ''], dtype=object)
array(['Sumita', 'T.', ''], dtype=object)
array(['Sun', 'J.', ''], dtype=object)
array(['Sun', 'Z.', ''], dtype=object)
array(['Sziklai', 'J.', ''], dtype=object)
array(['Tanida', 'K.', ''], dtype=object)
array(['Tannenbaum', 'M. J.', ''], dtype=object)
array(['Tarafdar', 'S.', ''], dtype=object)
array(['Taranenko', 'A.', ''], dtype=object)
array(['Tarnai', 'G.', ''], dtype=object)
array(['Tieulent', 'R.', ''], dtype=object)
array(['Timilsina', 'A.', ''], dtype=object)
array(['Todoroki', 'T.', ''], dtype=object)
array(['Tomášek', 'M.', ''], dtype=object)
array(['Towell', 'C. L.', ''], dtype=object)
array(['Towell', 'R. S.', ''], dtype=object)
array(['Tserruya', 'I.', ''], dtype=object)
array(['Ueda', 'Y.', ''], dtype=object)
array(['Ujvari', 'B.', ''], dtype=object)
array(['van Hecke', 'H. W.', ''], dtype=object)
array(['Velkovska', 'J.', ''], dtype=object)
array(['Virius', 'M.', ''], dtype=object)
array(['Vrba', 'V.', ''], dtype=object)
array(['Vukman', 'N.', ''], dtype=object)
array(['Wang', 'X. R.', ''], dtype=object)
array(['Watanabe', 'Y. S.', ''], dtype=object)
array(['Wong', 'C. P.', ''], dtype=object)
array(['Woody', 'C. L.', ''], dtype=object)
array(['Xu', 'C.', ''], dtype=object)
array(['Xu', 'Q.', ''], dtype=object)
array(['Xue', 'L.', ''], dtype=object)
array(['Yalcin', 'S.', ''], dtype=object)
array(['Yamaguchi', 'Y. L.', ''], dtype=object)
array(['Yamamoto', 'H.', ''], dtype=object)
array(['Yanovich', 'A.', ''], dtype=object)
array(['Yoo', 'J. H.', ''], dtype=object)
array(['Yoon', 'I.', ''], dtype=object)
array(['Yu', 'H.', ''], dtype=object)
array(['Yushmanov', 'I. E.', ''], dtype=object)
array(['Zajc', 'W. A.', ''], dtype=object)
array(['Zelenski', 'A.', ''], dtype=object)
array(['Zharko', 'S.', ''], dtype=object)
array(['Zou', 'L.', ''], dtype=object)] |
19,440 | 2302.02515 | Navid Mohammadi Foumani | Navid Mohammadi Foumani, Lynn Miller, Chang Wei Tan, Geoffrey I. Webb,
Germain Forestier, Mahsa Salehi | Deep Learning for Time Series Classification and Extrinsic Regression: A
Current Survey | null | null | null | null | cs.LG cs.AI cs.CV | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Time Series Classification and Extrinsic Regression are important and
challenging machine learning tasks. Deep learning has revolutionized natural
language processing and computer vision and holds great promise in other fields
such as time series analysis where the relevant features must often be
abstracted from the raw data but are not known a priori. This paper surveys the
current state of the art in the fast-moving field of deep learning for time
series classification and extrinsic regression. We review different network
architectures and training methods used for these tasks and discuss the
challenges and opportunities when applying deep learning to time series data.
We also summarize two critical applications of time series classification and
extrinsic regression, human activity recognition and satellite earth
observation.
| [{'version': 'v1', 'created': 'Mon, 6 Feb 2023 01:01:00 GMT'}] | 2023-02-07 | [array(['Foumani', 'Navid Mohammadi', ''], dtype=object)
array(['Miller', 'Lynn', ''], dtype=object)
array(['Tan', 'Chang Wei', ''], dtype=object)
array(['Webb', 'Geoffrey I.', ''], dtype=object)
array(['Forestier', 'Germain', ''], dtype=object)
array(['Salehi', 'Mahsa', ''], dtype=object)] |
19,441 | 2004.10684 | Abhay Ashtekar | Abhay Ashtekar, Alejandro Corichi and Aruna Kesavan | Emergence of classical behavior in the early universe | 43 pages; 3 Figures. Note Added in response to arXiv:2009.09999 as
Section VIII | Phys. Rev. D 102, 023512 (2020) | 10.1103/PhysRevD.102.023512 | null | gr-qc astro-ph.CO hep-th math-ph math.MP quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate three issues that have been discussed in the context of
inflation: Fading of the importance of quantum non-commutativity; the
phenomenon of quantum squeezing; and the ability to approximate the quantum
state by a distribution function on the classical phase space. In the standard
treatments, these features arise from properties of mode functions of quantum
fields in (near) de Sitter space-time. Therefore, the three notions are often
assumed to be essentially equivalent, representing different facets of the same
phenomenon. We analyze them in general Friedmann-Lemaitre- Robertson-Walker
space-times, through the lens of geometric structures on the classical phase
space. The analysis shows that: (i) inflation does not play an essential role;
classical behavior can emerge much more generally; (ii) the three notions are
conceptually distinct; classicality can emerge in one sense but not in another;
and, (iii) the third notion is realized in a surprisingly strong sense; there
is exact equality between completely general $n$-point functions in the
classical theory and those in the quantum theory, provided the quantum
operators are Weyl ordered. These features arise already for linear
cosmological perturbations by themselves: considerations such as mode-mode
coupling, decoherence, and measurement theory --although important in their own
right-- are not needed for emergence of classical behavior in any of the three
senses discussed. Generality of the results stems from the fact that they can
be traced back to geometrical structures on the classical phase space,
available in a wide class of systems. Therefore, this approach may also be
useful in other contexts.
| [{'version': 'v1', 'created': 'Wed, 22 Apr 2020 16:38:25 GMT'}
{'version': 'v2', 'created': 'Mon, 22 Jun 2020 15:26:05 GMT'}
{'version': 'v3', 'created': 'Thu, 12 Nov 2020 15:32:44 GMT'}] | 2020-11-13 | [array(['Ashtekar', 'Abhay', ''], dtype=object)
array(['Corichi', 'Alejandro', ''], dtype=object)
array(['Kesavan', 'Aruna', ''], dtype=object)] |
19,442 | 2305.15516 | Xingran Chen | Wanyun Cui, Xingran Chen | Free Lunch for Efficient Textual Commonsense Integration in Language
Models | null | null | null | null | cs.CL | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Recent years have witnessed the emergence of textual commonsense knowledge
bases, aimed at providing more nuanced and context-rich knowledge. The
integration of external commonsense into language models has been shown to be a
key enabler in advancing the state-of-the-art for a wide range of NLP tasks.
However, incorporating textual commonsense descriptions is computationally
expensive, as compared to encoding conventional symbolic knowledge. In this
paper, we propose a method to improve its efficiency without modifying the
model. We group training samples with similar commonsense descriptions into a
single batch, thus reusing the encoded description across multiple samples. One
key observation is that the upper bound of batch partitioning can be reduced to
the classic {\it graph k-cut problem}. Consequently, we propose a spectral
clustering-based algorithm to solve this problem. Extensive experiments
illustrate that the proposed batch partitioning approach effectively reduces
the computational cost while preserving performance. The efficiency improvement
is more pronounced on larger datasets and on devices with more memory capacity,
attesting to its practical utility for large-scale applications.
| [{'version': 'v1', 'created': 'Wed, 24 May 2023 19:14:57 GMT'}] | 2023-05-26 | [array(['Cui', 'Wanyun', ''], dtype=object)
array(['Chen', 'Xingran', ''], dtype=object)] |
19,443 | 1807.10935 | Xiaoyu Ge | Xiaoyu Ge and Jochen Renz and Hua Hua | Towards Explainable Inference about Object Motion using Qualitative
Reasoning | null | null | null | null | cs.AI | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The capability of making explainable inferences regarding physical processes
has long been desired. One fundamental physical process is object motion.
Inferring what causes the motion of a group of objects can even be a
challenging task for experts, e.g., in forensics science. Most of the work in
the literature relies on physics simulation to draw such infer- ences. The
simulation requires a precise model of the under- lying domain to work well and
is essentially a black-box from which one can hardly obtain any useful
explanation. By contrast, qualitative reasoning methods have the advan- tage in
making transparent inferences with ambiguous infor- mation, which makes it
suitable for this task. However, there has been no suitable qualitative theory
proposed for object motion in three-dimensional space. In this paper, we take
this challenge and develop a qualitative theory for the motion of rigid
objects. Based on this theory, we develop a reasoning method to solve a very
interesting problem: Assuming there are several objects that were initially at
rest and now have started to move. We want to infer what action causes the
movement of these objects.
| [{'version': 'v1', 'created': 'Sat, 28 Jul 2018 13:35:39 GMT'}] | 2018-07-31 | [array(['Ge', 'Xiaoyu', ''], dtype=object)
array(['Renz', 'Jochen', ''], dtype=object)
array(['Hua', 'Hua', ''], dtype=object)] |
19,444 | 1308.2402 | Rahbar Virk | R. Virk | Graded tensoring and crystals | minor typos fixed | null | null | null | math.RT math.CO math.QA | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | An action of the $\mathfrak{sl}_2$-crystal category on graded/mixed
(integral) category $\mathcal{O}$ `lifting' the usual tensor product is
defined.
| [{'version': 'v1', 'created': 'Sun, 11 Aug 2013 15:37:57 GMT'}
{'version': 'v2', 'created': 'Tue, 27 Aug 2013 12:33:42 GMT'}
{'version': 'v3', 'created': 'Sun, 29 Dec 2013 00:33:02 GMT'}] | 2013-12-31 | [array(['Virk', 'R.', ''], dtype=object)] |
19,445 | astro-ph/9905125 | Aghanim | O. Forni & N. Aghanim (Institut d'Astrophysique Spatiale) | Searching for non-gaussianity: Statistical tests | 14 pages, 7 figures, in press in Astronomy & Astrophysics Supplement
Series | null | 10.1051/aas:1999262 | null | astro-ph | null | Non-gaussianity represents the statistical signature of physical processes
such as turbulence. It can also be used as a powerful tool to discriminate
between competing cosmological scenarios. A canonical analysis of
non-gaussianity is based on the study of the distribution of the signal in the
real (or direct) space (e.g. brightness, temperature).
This work presents an image processing method in which we propose statistical
tests to indicate and quantify the non-gaussian nature of a signal. Our method
is based on a wavelet analysis of a signal. Because the temperature or
brightness distribution is a rather weak discriminator, the search for the
statistical signature of non-gaussianity relies on the study of the coefficient
distribution of an image in the wavelet decomposition basis which is much more
sensitive.
We develop two statistical tests for non-gaussianity. In order to test their
reliability, we apply them to sets of test maps representing a combination of
gaussian and non-gaussian signals. We deliberately choose a signal with a weak
non-gaussian signature and we find that such a non-gaussian signature is easily
detected using our statistical discriminators. In a second paper, we apply the
tests in a cosmological context.
| [{'version': 'v1', 'created': 'Tue, 11 May 1999 15:28:07 GMT'}] | 2009-10-31 | [array(['Forni', 'O.', '', "Institut d'Astrophysique Spatiale"],
dtype=object)
array(['Aghanim', 'N.', '', "Institut d'Astrophysique Spatiale"],
dtype=object) ] |
19,446 | 1309.4361 | Yu Luo | Yu Luo, Rongkuo Zhao, Antonio I. Fernandez-Dominguez, Stefan A. Maier
and J. B. Pendry | Harvesting Light with Transformation Optics | 20 pages, 10 figures, Accepted for publication by Science China
Information Sciences | Science China Information Sciences 56, 1-3 (2013) | 10.1007/s11432-013-5031-2 | null | physics.optics cond-mat.mes-hall | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Transformation optics (TO) is a new tool for controlling electromagnetic
fields. In the context of metamaterial technology, it provides a direct link
between a desired electromagnetic (EM) phenomenon and the material response
required for its occurrence. Recently, this powerful framework has been
successfully exploited to study surface plasmon assisted phenomena such as
light harvesting. Here, we review the general strategy based on TO to design
plasmonic devices capable of harvesting light over a broadband spectrum and
achieving considerable field confinement and enhancement. The methodology
starts with two-dimensional (2D) cases, such as 2D metal edges, crescent-shaped
cylinders, nanowire dimers, and rough metal surfaces, and has been well
extended to fully-fledged three-dimensional (3D) situations. The largely
analytic approach gives physical insights into the processes involved and
suggests the way forward to study a wide variety of plasmonic nanostructures.
| [{'version': 'v1', 'created': 'Tue, 17 Sep 2013 15:58:34 GMT'}] | 2016-10-13 | [array(['Luo', 'Yu', ''], dtype=object)
array(['Zhao', 'Rongkuo', ''], dtype=object)
array(['Fernandez-Dominguez', 'Antonio I.', ''], dtype=object)
array(['Maier', 'Stefan A.', ''], dtype=object)
array(['Pendry', 'J. B.', ''], dtype=object)] |
19,447 | 1801.00925 | James Langley | J.K. Langley | Transcendental singularities for a meromorphic function with logarithmic
derivative of finite lower order | This is the final pre-publication version | null | null | null | math.CV | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this note it is shown that two key results on transcendental singularities
for meromorphic functions of finite lower order have refinements which hold
under the weaker hypothesis that the logarithmic derivative has finite lower
order.
| [{'version': 'v1', 'created': 'Wed, 3 Jan 2018 08:54:27 GMT'}
{'version': 'v2', 'created': 'Wed, 25 Jul 2018 07:54:05 GMT'}] | 2018-07-26 | [array(['Langley', 'J. K.', ''], dtype=object)] |
19,448 | 2106.09633 | Adam Lane | Adam Lane | Optimal Relevant Subset Designs in Nonlinear Models | 25 pages, 6 figures, 1 table | null | null | null | stat.ME | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Fisher (1934) argued that certain ancillary statistics form a relevant
subset, a subset of the sample space on which inference should be restricted,
and showed that conditioning on their observed value reduces the dimension of
the data without a loss of information. The use of ancillary statistics in
post-data inference has received significant attention; however, their role in
the design of the experiment has not been well characterized. Ancillary
statistics are unknown prior to data collection and as a result cannot be
incorporated into the design a priori. However, if the data are observed
sequentially then the ancillary statistics based on the data from the preceding
observations can be used to determine the design assignment for the current
observation. The main results of this work describe the benefits of
incorporating ancillary statistics, specifically, the ancillary statistic that
constitutes a relevant subset, into an adaptive design.
| [{'version': 'v1', 'created': 'Thu, 17 Jun 2021 16:22:00 GMT'}] | 2021-06-18 | [array(['Lane', 'Adam', ''], dtype=object)] |
19,449 | 2203.15255 | Hassan Abedi Firouzjaei | Hassan Abedi Firouzjaei | Survival analysis for user disengagement prediction:
question-and-answering communities' case | null | null | null | null | cs.SI | http://creativecommons.org/licenses/by-sa/4.0/ | We used survival analysis to model user disengagement in three distinct
questions-and-answering communities in this work. We used the complete
historical data of {Politics, Data Science, Computer Science} Stack Exchange
communities from their inception until May 2021, which include the information
about all users who were members of one of these three communities.
Furthermore, formulating the user disengagement prediction as a survival
analysis task, we utilised two survival analysis techniques to model and
predict the probabilities of members of each community becoming disengaged. Our
main finding is that the likelihood of users with even a few contributions
staying active is noticeably higher than the users who were making no
contributions; this distinction may widen as time passes. Moreover, the results
of our experiments indicate that users with more favourable views towards the
content shared on the platform may stay engaged longer. Finally, the observed
pattern holds for all three communities, regardless of their themes.
| [{'version': 'v1', 'created': 'Tue, 29 Mar 2022 06:00:09 GMT'}] | 2022-03-30 | [array(['Firouzjaei', 'Hassan Abedi', ''], dtype=object)] |
19,450 | 1008.3572 | Sayan Mukherjee | Paul Bendich and Sayan Mukherjee and Bei Wang | Towards Stratification Learning through Homology Inference | 48 pages | null | null | null | math.GT stat.ML | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A topological approach to stratification learning is developed for point
cloud data drawn from a stratified space. Given such data, our objective is to
infer which points belong to the same strata. First we define a multi-scale
notion of a stratified space, giving a stratification for each radius level. We
then use methods derived from kernel and cokernel persistent homology to
cluster the data points into different strata, and we prove a result which
guarantees the correctness of our clustering, given certain topological
conditions; some geometric intuition for these topological conditions is also
provided. Our correctness result is then given a probabilistic flavor: we give
bounds on the minimum number of sample points required to infer, with
probability, which points belong to the same strata. Finally, we give an
explicit algorithm for the clustering, prove its correctness, and apply it to
some simulated data.
| [{'version': 'v1', 'created': 'Fri, 20 Aug 2010 20:46:39 GMT'}] | 2010-08-24 | [array(['Bendich', 'Paul', ''], dtype=object)
array(['Mukherjee', 'Sayan', ''], dtype=object)
array(['Wang', 'Bei', ''], dtype=object)] |
19,451 | 1912.13293 | Evgeny F. Talantsev | E.F. Talantsev | Unconventional superconductivity in highly-compressed unannealed sulphur
hydride | 8 pages, 2 figures, 1 table | Results in Physics 16, 102993 (2020) | 10.1016/j.rinp.2020.102993 | null | cond-mat.supr-con | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | While great scientific efforts focus on the synthesis and studies of
near-room-temperature (NRT) superconductors exhibited record superconducting
transition temperatures (for instance, laser annealed H3S, LaH10 and YHn (n =
4,6,7,9) with Tc > 200 K), unannealed low-Tc counterparts of NRT
superconductors stay in the background. However, the formers are part of
hydrogen-rich superconductors family and the success in understanding of NRT
superconductivity depends on the study of these materials too. In this paper we
analyse experimental temperature dependent upper critical field data, Bc2(T),
reported by Drozdov et al (Nature 525, 73 (2015)) for unannealed
highly-compressed (P = 155 GPa) sulphur hydride with Tc = 46 K and show that
this material is unconventional superconductor which exhibits the ratio of Tc
to the Fermi temperature, TF, in the range of 0.02 < Tc/TF < 0.05.
| [{'version': 'v1', 'created': 'Tue, 31 Dec 2019 12:59:02 GMT'}
{'version': 'v2', 'created': 'Thu, 2 Jan 2020 13:08:33 GMT'}
{'version': 'v3', 'created': 'Mon, 9 Mar 2020 07:47:16 GMT'}
{'version': 'v4', 'created': 'Mon, 20 Apr 2020 10:32:55 GMT'}] | 2020-04-21 | [array(['Talantsev', 'E. F.', ''], dtype=object)] |
19,452 | 2111.04688 | Vidya Muthukumar | Vidya Muthukumar, Akshay Krishnamurthy | Universal and data-adaptive algorithms for model selection in linear
contextual bandits | 30 pages, to appear in ICML 2022 | null | null | null | cs.LG stat.ML | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Model selection in contextual bandits is an important complementary problem
to regret minimization with respect to a fixed model class. We consider the
simplest non-trivial instance of model-selection: distinguishing a simple
multi-armed bandit problem from a linear contextual bandit problem. Even in
this instance, current state-of-the-art methods explore in a suboptimal manner
and require strong "feature-diversity" conditions. In this paper, we introduce
new algorithms that a) explore in a data-adaptive manner, and b) provide model
selection guarantees of the form $\mathcal{O}(d^{\alpha} T^{1- \alpha})$ with
no feature diversity conditions whatsoever, where $d$ denotes the dimension of
the linear model and $T$ denotes the total number of rounds. The first
algorithm enjoys a "best-of-both-worlds" property, recovering two prior results
that hold under distinct distributional assumptions, simultaneously. The second
removes distributional assumptions altogether, expanding the scope for
tractable model selection. Our approach extends to model selection among nested
linear contextual bandits under some additional assumptions.
| [{'version': 'v1', 'created': 'Mon, 8 Nov 2021 18:05:35 GMT'}
{'version': 'v2', 'created': 'Thu, 30 Jun 2022 16:04:16 GMT'}] | 2022-07-01 | [array(['Muthukumar', 'Vidya', ''], dtype=object)
array(['Krishnamurthy', 'Akshay', ''], dtype=object)] |
19,453 | 2106.02583 | Alessio Franci | Alessio Franci | Feedback design of spatially-distributed filters with tunable resolution | null | null | null | null | math.OC nlin.PS q-bio.NC | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We derive gain-tuning rules for the positive and negative spatial-feedback
loops of a spatially-distributed filter to change the resolution of its spatial
band-pass characteristic accordingly to a wavelet zoom, while preserving
temporal stability. The filter design is inspired by the canonical spatial
feedback structure of the primary visual cortex and is motivated by
understanding attentional control of visual resolution. Besides biology, our
control-theoretical design strategy is relevant for the development of
neuromorphic multiresolution distributed sensors through the feedback
interconnection of elementary spatial transfer functions and gain tuning.
| [{'version': 'v1', 'created': 'Fri, 4 Jun 2021 16:29:42 GMT'}] | 2021-06-07 | [array(['Franci', 'Alessio', ''], dtype=object)] |
19,454 | 2103.12174 | Hicham Agueny | Hicham Agueny | Tuning the electronic band structure of metal surfaces for enhancing
high-order harmonic generation | 9 pages, 4 figures | null | 10.1063/5.0049532 | null | physics.optics cond-mat.other | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | High harmonic generation (HHG) from condensed matter phase holds promise to
promote future cutting-edge research in the emerging field of attosecond
nanoscopy. The key for the progress of the field relies on the capability of
the existing schemes to enhance the harmonic yield and to push the photon
energy cutoff to the extreme ultraviolet (XUV, 10-100 eV) regime and beyond
towards the spectral "water window" region (282-533 eV). Here, we demonstrate a
coherent control scheme of HHG, which we show to give rise to quantum
modulations in the XUV region. The control scheme is based on exploring surface
states in transition-metal surfaces, and specifically by tuning the electronic
structure of the metal surface itself together with the use of optimal chirped
pulses. Moreover, we show that the use of such pulses having moderate
intensities permits to push the harmonic cutoff further to the spectral water
window region, and that the extension is found to be robust against the change
of the intrinsic properties of the material. The scenario is numerically
implemented using a minimal model by solving the time-dependent Schrodinger
equation for the metal surface Cu(111) initially prepared in the surface state.
Our findings elucidate the importance of metal surfaces for generating coherent
isolated attosecond XUV and soft-x-ray pulses and for designing compact
solid-state HHG devices.
| [{'version': 'v1', 'created': 'Mon, 22 Mar 2021 20:50:57 GMT'}] | 2021-07-07 | [array(['Agueny', 'Hicham', ''], dtype=object)] |
19,455 | 2109.09703 | Rachel Ward | Dimitris Giannakis, Amelia Henriksen, Joel A. Tropp, and Rachel Ward | Learning to Forecast Dynamical Systems from Streaming Data | 30 pages, 3 tables, 8 figures | null | null | null | math.DS cs.LG cs.NA math.NA | http://creativecommons.org/licenses/by/4.0/ | Kernel analog forecasting (KAF) is a powerful methodology for data-driven,
non-parametric forecasting of dynamically generated time series data. This
approach has a rigorous foundation in Koopman operator theory and it produces
good forecasts in practice, but it suffers from the heavy computational costs
common to kernel methods. This paper proposes a streaming algorithm for KAF
that only requires a single pass over the training data. This algorithm
dramatically reduces the costs of training and prediction without sacrificing
forecasting skill. Computational experiments demonstrate that the streaming KAF
method can successfully forecast several classes of dynamical systems
(periodic, quasi-periodic, and chaotic) in both data-scarce and data-rich
regimes. The overall methodology may have wider interest as a new template for
streaming kernel regression.
| [{'version': 'v1', 'created': 'Mon, 20 Sep 2021 17:19:57 GMT'}
{'version': 'v2', 'created': 'Tue, 21 Sep 2021 14:38:26 GMT'}] | 2021-09-22 | [array(['Giannakis', 'Dimitris', ''], dtype=object)
array(['Henriksen', 'Amelia', ''], dtype=object)
array(['Tropp', 'Joel A.', ''], dtype=object)
array(['Ward', 'Rachel', ''], dtype=object)] |
19,456 | 1507.05706 | William McLean | Kim Ngan Le, William McLean and Kassem Mustapha | Numerical solution of the time-fractional Fokker-Planck equation with
general forcing | 3 Figures | SIAM J. Numer. Anal. 54:1763-1784, 2016 | 10.1137/15M1031734 | null | math.NA | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study two schemes for a time-fractional Fokker-Planck equation with space-
and time-dependent forcing in one space dimension. The first scheme is
continuous in time and is discretized in space using a piecewise-linear
Galerkin finite element method. The second is continuous in space and employs a
time-stepping procedure similar to the classical implicit Euler method. We show
that the space discretization is second-order accurate in the spatial
$L_2$-norm, uniformly in time, whereas the corresponding error for the
time-stepping scheme is $O(k^\alpha)$ for a uniform time step $k$, where
$\alpha\in(1/2,1)$ is the fractional diffusion parameter. In numerical
experiments using a combined, fully-discrete method, we observe convergence
behaviour consistent with these results.
| [{'version': 'v1', 'created': 'Tue, 21 Jul 2015 04:39:02 GMT'}] | 2016-10-24 | [array(['Le', 'Kim Ngan', ''], dtype=object)
array(['McLean', 'William', ''], dtype=object)
array(['Mustapha', 'Kassem', ''], dtype=object)] |
19,457 | 1012.4921 | Satoshi Kuriki | Satoshi Kuriki, Yoshiaki Harushima, Hironori Fujisawa, Nori Kurata | Approximate tail probabilities of the maximum of a chi-square field on
multi-dimensional lattice points and their applications to detection of loci
interactions | 33 pages, 5 figures, 2 tables | null | null | null | stat.ME | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Define a chi-square random field on a multi-dimensional lattice points index
set with a direct-product covariance structure, and consider the distribution
of the maximum of this random field. We provide two approximate formulas for
the upper tail probability of the distribution based on nonlinear renewal
theory and an integral-geometric approach called the volume-of-tube method.
This study is motivated by the detection problem of the interactive loci pairs
which play an important role in forming biological species. The joint
distribution of scan statistics for detecting the pairs is regarded as the
chi-square random field above, and hence the multiplicity-adjusted $p$-value
can be calculated by using the proposed approximate formulas. By using these
formulas, we examine the data of Mizuta, et al. (2010) who reported a new
interactive loci pair of rice inter-subspecies.
| [{'version': 'v1', 'created': 'Wed, 22 Dec 2010 10:03:48 GMT'}
{'version': 'v2', 'created': 'Tue, 21 Feb 2012 09:50:35 GMT'}
{'version': 'v3', 'created': 'Sat, 30 Mar 2013 05:01:27 GMT'}] | 2013-04-02 | [array(['Kuriki', 'Satoshi', ''], dtype=object)
array(['Harushima', 'Yoshiaki', ''], dtype=object)
array(['Fujisawa', 'Hironori', ''], dtype=object)
array(['Kurata', 'Nori', ''], dtype=object)] |
19,458 | 2301.01107 | James He | James K. He, Sof\'ia S. Villar, and Lida Mavrogonatou | Computing the Performance of A New Adaptive Sampling Algorithm Based on
The Gittins Index in Experiments with Exponential Rewards | Accepted by Computing Conference, London 2023 | null | null | null | stat.CO cs.LG | http://creativecommons.org/licenses/by/4.0/ | Designing experiments often requires balancing between learning about the
true treatment effects and earning from allocating more samples to the superior
treatment. While optimal algorithms for the Multi-Armed Bandit Problem (MABP)
provide allocation policies that optimally balance learning and earning, they
tend to be computationally expensive. The Gittins Index (GI) is a solution to
the MABP that can simultaneously attain optimality and computationally
efficiency goals, and it has been recently used in experiments with Bernoulli
and Gaussian rewards. For the first time, we present a modification of the GI
rule that can be used in experiments with exponentially-distributed rewards. We
report its performance in simulated 2- armed and 3-armed experiments. Compared
to traditional non-adaptive designs, our novel GI modified design shows
operating characteristics comparable in learning (e.g. statistical power) but
substantially better in earning (e.g. direct benefits). This illustrates the
potential that designs using a GI approach to allocate participants have to
improve participant benefits, increase efficiencies, and reduce experimental
costs in adaptive multi-armed experiments with exponential rewards.
| [{'version': 'v1', 'created': 'Tue, 3 Jan 2023 14:04:13 GMT'}] | 2023-01-04 | [array(['He', 'James K.', ''], dtype=object)
array(['Villar', 'Sofía S.', ''], dtype=object)
array(['Mavrogonatou', 'Lida', ''], dtype=object)] |
19,459 | 1407.6530 | Eli Wilner | Eli Y. Wilner, Haobin Wang, Michael Thoss, Eran Rabani | Phonon dynamics in correlated quantum systems driven away from
equilibrium | 5 pages, 3 figures | Phys. Rev. B 90, 115145 (2014) | 10.1103/PhysRevB.90.115145 | null | cond-mat.str-el cond-mat.mes-hall | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A general form of a many-body Hamiltonian is considered, which includes an
interacting fermionic sub-system coupled to non-interacting extended fermionic
and bosonic systems. We show that the exact dynamics of the extended bosonic
system can be derived from the reduced density matrix of the sub-system alone,
despite the fact that the latter contains information about the sub-system
only. The advantage of the formalism is immediately clear: While the reduced
density matrix of the sub-system is readily available, the formalism offers
access to observables contained in the full density matrix, which is often
difficult to obtain. As an example, we consider an extended Holstein model and
study the nonequilibrium dynamics of the, so called, "reaction mode" for
different model parameters. The effects of the phonon frequency, the strength
of the electron-phonon couplings, and the source-drain bias voltage on the
phonon dynamics across the bistability are discussed.
| [{'version': 'v1', 'created': 'Thu, 24 Jul 2014 11:23:19 GMT'}
{'version': 'v2', 'created': 'Fri, 25 Jul 2014 03:46:34 GMT'}] | 2015-06-22 | [array(['Wilner', 'Eli Y.', ''], dtype=object)
array(['Wang', 'Haobin', ''], dtype=object)
array(['Thoss', 'Michael', ''], dtype=object)
array(['Rabani', 'Eran', ''], dtype=object)] |
19,460 | 1801.05519 | Edwin Barnes | Arian Vezvaee, Antonio Russo, Sophia E. Economou, Edwin Barnes | Topological insulator ring with magnetic impurities | 15 pages, 9 figures | Phys. Rev. B 98, 035301 (2018) | 10.1103/PhysRevB.98.035301 | null | cond-mat.mes-hall | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Topological insulators exhibit gapless edge or surface states that are
topologically protected by time-reversal symmetry. However, several promising
candidates for topologically insulating materials (such as Bi$_2$Se$_3$ and
HgTe) contain spinful nuclei or other types of magnetic impurities that break
time-reversal symmetry. We investigate the consequences of such impurities
coupled to electronic edge states in a topological insulator quantum ring
threaded by a magnetic flux. We use spin conservation and additional symmetry
arguments to derive a universal formula for the spectrum of propagating edge
modes in terms of the amplitude of transmission through the impurity. Our
results apply for impurities of arbitrary spin. We show that there exists an
energy regime in which the spectrum becomes nearly independent of the flux and
significant spectral gaps form. We further analyze the electron-impurity
entanglement entropy, finding that maximal entanglement occurs near the gaps in
the spectrum. Our predictions can be investigated with quantum ring transport
interference experiments or through spin-resolved STM measurements, providing a
new approach to understand the role of impurities in topological insulator edge
transport.
| [{'version': 'v1', 'created': 'Wed, 17 Jan 2018 01:35:29 GMT'}] | 2018-07-11 | [array(['Vezvaee', 'Arian', ''], dtype=object)
array(['Russo', 'Antonio', ''], dtype=object)
array(['Economou', 'Sophia E.', ''], dtype=object)
array(['Barnes', 'Edwin', ''], dtype=object)] |
19,461 | hep-th/9810080 | Bert Schroer | Bert Schroer (presently CBPF Rio de Janeiro) | Particle Physics and QFT at the Turn of the Century Old principles with
new concepts (an essay on local quantum physics) | This is an invited contribution to the special Y2K issue of JMP. The
Title and part of the original content of my notes hep-th/9810080 was used in
the present essay | null | null | null | hep-th math-ph math.MP | null | The present state of QFT is analysed from a new viewpoint whose mathematical
basis is the modular theory of von Neumann algebras. Its physical consequences
suggest new ways of dealing with interactions, symmetries, Hawking-Unruh
thermal properties and possibly also extensions of the scheme of renormalized
perturbation theory. Interactions are incorporated by using the fact that the
S-matrix is a relative modular invariant of the interacting- relative to the
incoming- net of wedge algebras. This new point of view allows many interesting
comparisions with the standard quantization approach to QFT and is shown to be
firmly rooted in the history of QFT. Its radical ``change of paradigm'' aspect
becomes particularily visible in the quantum measurement problem. Key words:
Quantum Field Theory, S-matrix Theory, Tomita-Takesaki Modular Theory.
| [{'version': 'v1', 'created': 'Mon, 12 Oct 1998 14:24:16 GMT'}
{'version': 'v2', 'created': 'Tue, 13 Oct 1998 14:30:49 GMT'}
{'version': 'v3', 'created': 'Mon, 13 Mar 2000 17:07:35 GMT'}] | 2007-05-23 | [array(['Schroer', 'Bert', '', 'presently CBPF Rio de Janeiro'],
dtype=object) ] |
19,462 | 1708.07700 | Markus Nielbock | Markus Nielbock | Navigation in the Ancient Mediterranean and Beyond | 11 pages, 18 figures. This resource was developed in the framework of
Space Awareness. Space Awareness is funded by the European Commission's
Horizon 2020 Programme under grant agreement no. 638653. Published by
AstroEDU:
http://astroedu.iau.org/en/activities/1645/navigation-in-the-ancient-mediterranean-and-beyond/ | Nielbock, M., 2017, Navigation in the Ancient Mediterranean and
Beyond, astroEDU, 1645 | 10.14586/astroedu/1645 | astroedu1645 | physics.ed-ph physics.pop-ph | http://creativecommons.org/licenses/by/4.0/ | This lesson unit has been developed within the framework the EU Space
Awareness project. It provides an insight into the history and navigational
methods of the Bronze Age Mediterranean peoples. The students explore the link
between exciting history and astronomical knowledge. Besides an overview of
ancient seafaring in the Mediterranean, the students explore in two hands-on
activities early navigational skills using the stars and constellations and
their apparent nightly movement across the sky. In the course of the
activities, they become familiar with the stellar constellations and how they
are distributed across the northern and southern sky.
| [{'version': 'v1', 'created': 'Fri, 25 Aug 2017 11:49:45 GMT'}
{'version': 'v2', 'created': 'Tue, 29 Aug 2017 16:09:30 GMT'}
{'version': 'v3', 'created': 'Thu, 31 Aug 2017 15:12:49 GMT'}] | 2017-09-06 | [array(['Nielbock', 'Markus', ''], dtype=object)] |
19,463 | 1408.4886 | Jameel-Un Nabi | Sadiye Cakmak, Jameel-Un Nabi, Tahsin Babacan and Cevad Selam | Study of Gamow-Teller transitions in isotopes of titanium within the
quasi particle random phase approximation | 24 pages, 5 figures and 5 tables | Astrophysics and Space Science 352, 645-663 (2014) | 10.1007/s10509-014-1969-9 | null | nucl-th astro-ph.SR | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Gamow-Teller (GT) transition is inarguably one of the most important
nuclear weak transitions of the spin-isosopin $\sigma\tau$ type. It has many
applications in nuclear and astrophysics. These include, but are not limited
to, r-process $\beta$-decays, stellar electron captures, neutrino cooling
rates, neutrino absorption and inelastic scattering on nuclei. The
quasiparticle random phase approximation (QRPA) is an efficient way to generate
GT strength distribution. In order to better understand both theoretical
systematics and uncertainties, we compare the GT strength distributions,
centroid and width calculations for $^{40-60}$Ti isotopes, using the pn-QRPA,
Pyatov method (PM) and the Schematic model (SM). The pn-QRPA and SM are further
sub-divided into three categories in order to highlight the role of
particle-particle (pp) force and deformation of the nucleus in the GT strength
calculations. In PM, we study only the influence of the pp force in the
calculation. We also compare with experimental results and other calculations
where available. We found that the inclusion of pp force and deformation
significantly improves the performance of SM and pn-QRPA models. Incorporation
of pp force leads to pinning down the centroid value in the PM. The calculated
GT strength functions using the pn-QRPA (C) and SM (C) models are in reasonable
agreement with measured data.
| [{'version': 'v1', 'created': 'Thu, 21 Aug 2014 05:33:00 GMT'}] | 2015-06-22 | [array(['Cakmak', 'Sadiye', ''], dtype=object)
array(['Nabi', 'Jameel-Un', ''], dtype=object)
array(['Babacan', 'Tahsin', ''], dtype=object)
array(['Selam', 'Cevad', ''], dtype=object)] |
19,464 | 1211.2048 | Myungseok Eune | Myungseok Eune and Wontae Kim | Entropy and temperatures of Nariai black hole | 12 pages, no figure | Phys. Lett. B 723 (2013) 177-181 | 10.1016/j.physletb.2013.04.052 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The statistical entropy of the Nariai black hole in a thermal equilibrium is
calculated by using the brick-wall method. Even if the temperature depends on
the choice of the time-like Killing vector, the entropy can be written by the
ordinary area law which agrees with the Wald entropy. We discuss some physical
consequences of this result and the properties of the temperatures.
| [{'version': 'v1', 'created': 'Fri, 9 Nov 2012 05:41:08 GMT'}
{'version': 'v2', 'created': 'Wed, 26 Dec 2012 04:11:36 GMT'}] | 2013-05-30 | [array(['Eune', 'Myungseok', ''], dtype=object)
array(['Kim', 'Wontae', ''], dtype=object)] |
19,465 | 1607.01192 | Michael Muma | Michael Muma and Abdelhak M. Zoubir | Bounded Influence Propagation {\tau}-Estimation: A New Robust Method for
ARMA Model Estimation | null | null | 10.1109/TSP.2016.2634539 | null | stat.ME | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A new robust and statistically efficient estimator for ARMA models called the
bounded influence propagation (BIP) {\tau}-estimator is proposed. The estimator
incorporates an auxiliary model, which prevents the propagation of outliers.
Strong consistency and asymptotic normality of the estimator for ARMA models
that are driven by independently and identically distributed (iid) innovations
with symmetric distributions are established. To analyze the infinitesimal
effect of outliers on the estimator, the influence function is derived and
computed explicitly for an AR(1) model with additive outliers. To obtain
estimates for the AR(p) model, a robust Durbin-Levinson type and a
forward-backward algorithm are proposed. An iterative algorithm to robustly
obtain ARMA(p,q) parameter estimates is also presented. The problem of finding
a robust initialization is addressed, which for orders p+q>2 is a non-trivial
matter. Numerical experiments are conducted to compare the finite sample
performance of the proposed estimator to existing robust methodologies for
different types of outliers both in terms of average and of worst-case
performance, as measured by the maximum bias curve. To illustrate the practical
applicability of the proposed estimator, a real-data example of outlier
cleaning for R-R interval plots derived from electrocardiographic (ECG) data is
considered. The proposed estimator is not limited to biomedical applications,
but is also useful in any real-world problem whose observations can be modeled
as an ARMA process disturbed by outliers or impulsive noise.
| [{'version': 'v1', 'created': 'Tue, 5 Jul 2016 11:07:02 GMT'}
{'version': 'v2', 'created': 'Mon, 11 Jul 2016 09:44:53 GMT'}
{'version': 'v3', 'created': 'Thu, 20 Oct 2016 08:57:00 GMT'}] | 2017-04-05 | [array(['Muma', 'Michael', ''], dtype=object)
array(['Zoubir', 'Abdelhak M.', ''], dtype=object)] |
19,466 | 1806.01464 | Wontae Kim | Wontae Kim | Hawking effect of AdS$_2$ black hole in the Jackiw-Teitelboim model | 14 pages, no figure, published version to appear in JKPS | null | 10.3938/jkps.75.430 | null | gr-qc hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | It might be tempting to consider that the two-dimensional anti-de Sitter
black hole in the Jackiw-Teitelboim model is thermally hot by invoking the
non-vanishing surface gravity. So, one might expect that the local temperature
would also be blue-shifted near the horizon, while it would vanish at infinity
because of the Tolman factor of the local temperature. In this paper, we will
show that the local temperature vanishes everywhere, which respects the
equivalence principle perfectly in contrast to the case of the asymptotically
flat black holes recovering the equivalence principle just at the horizon. In
other words, the origin of radiation for a fixed observer comes from the Unruh
effect rather than the Hawking effect. If the inward and outward fluxes are
defined non-trivially at the horizon, then the local temperature of the black
hole takes the usual Tolman form; however, the divergent Tolman temperature at
the horizon is incompatible with the finite local energy density there.
| [{'version': 'v1', 'created': 'Tue, 5 Jun 2018 02:11:50 GMT'}
{'version': 'v2', 'created': 'Wed, 6 Jun 2018 06:13:54 GMT'}
{'version': 'v3', 'created': 'Fri, 8 Jun 2018 08:59:22 GMT'}
{'version': 'v4', 'created': 'Fri, 11 Oct 2019 02:08:01 GMT'}] | 2019-10-14 | [array(['Kim', 'Wontae', ''], dtype=object)] |
19,467 | astro-ph/9501030 | Peter Biermann | Peter L. Biermann | SUPERNOVA BLASTWAVES AND PRE-SUPERNOVA WINDS: THEIR COSMIC RAY
CONTRIBUTION | Invited review chapter for "Cosmic Winds and the Heliosphere", Eds.
J.R. Jokipii, C.P. Sonett, M.S. Giampapa, Tucson, University of Arizona
Press, 76 pages, no figures, uuencoded | null | null | MPIfR 618 | astro-ph | null | Supernova explosions into predecessor stellar winds can lead to particle
acceleration, which we suggest can explain most of the observed cosmic rays of
the nuclei of Helium and heavier elements, from GeV in particle energies up to
near $3 \, 10^9$ GeV, as well as electrons above about 30 GeV. We go through
the following steps:
1) Using a postulated underlying principle that leads to transport
coefficients in a turbulent plasma, we derive the properties of energetic
particles accelerated in spherical shocks.
2) We suggest that a dynamo working in the inner convection zone of an upper
main sequence star can lead to high magnetic field strengths.
3) Such magnetic fields may put additional momentum into stellar winds from
the pressure gradient of the toroidal field.
4) We derive a lower limit for the magnetic field strengths.
5) There appears to be a critical Alfv\'enic Machnumber for electron
injection. With this concept we propose an explanation for the observed
proton/electron ratio in galactic cosmic rays at GeV energies.
6) We check the model prediction quantitatively on cosmic ray spectrum and
chemical composition against airshower data and further cosmic ray data.
7) Finally, we summarize various important caveats, and outline important
next steps as well as checks.
| [{'version': 'v1', 'created': 'Tue, 10 Jan 1995 11:40:38 GMT'}] | 2016-08-30 | [array(['Biermann', 'Peter L.', ''], dtype=object)] |
19,468 | 1106.0062 | Jiangbin Gong Prof. | Jiangbin Gong | Comment on "Quantification of Macroscopic Quantum Superpositions within
Phase Space" | minor changes, submitted to Phys. Rev. Lett | null | null | null | quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The phase space measure proposed by Lee and Jeong [PRL 106, 220401 (2011)] is
shown to be closely related to a well-studied measure in the literature. For
pure states, the newly proposed measure is equivalent to an old measure; for
mixed states, some discussions are given.
| [{'version': 'v1', 'created': 'Wed, 1 Jun 2011 00:21:03 GMT'}
{'version': 'v2', 'created': 'Thu, 2 Jun 2011 15:40:43 GMT'}] | 2011-06-03 | [array(['Gong', 'Jiangbin', ''], dtype=object)] |
19,469 | 2103.15268 | Zainab Masood | Zainab Masood, Rashina Hoda, and Kelly Blincoe | Real World Scrum A Grounded Theory of Variations in Practice | null | null | 10.1109/TSE.2020.3025317 | null | cs.SE | http://creativecommons.org/licenses/by-nc-nd/4.0/ | Scrum, the most popular agile method and project management framework, is
widely reported to be used, adapted, misused, and abused in practice. However,
not much is known about how Scrum actually works in practice, and critically,
where, when, how and why it diverges from Scrum by the book. Through a Grounded
Theory study involving semi-structured interviews of 45 participants from 30
companies and observations of five teams, we present our findings on how Scrum
works in practice as compared to how it is presented in its formative books. We
identify significant variations in these practices such as work breakdown,
estimation, prioritization, assignment, the associated roles and artefacts, and
discuss the underlying rationales driving the variations. Critically, we claim
that not all variations are process misuse/abuse and propose a nuanced
classification approach to understanding variations as standard, necessary,
contextual, and clear deviations for successful Scrum use and adaptation
| [{'version': 'v1', 'created': 'Mon, 29 Mar 2021 01:41:11 GMT'}] | 2021-03-30 | [array(['Masood', 'Zainab', ''], dtype=object)
array(['Hoda', 'Rashina', ''], dtype=object)
array(['Blincoe', 'Kelly', ''], dtype=object)] |
19,470 | 2010.12770 | Jianpeng Cheng J | Jianpeng Cheng, Devang Agrawal, Hector Martinez Alonso, Shruti
Bhargava, Joris Driesen, Federico Flego, Shaona Ghosh, Dain Kaplan, Dimitri
Kartsaklis, Lin Li, Dhivya Piraviperumal, Jason D Williams, Hong Yu, Diarmuid
O Seaghdha, Anders Johannsen | Conversational Semantic Parsing for Dialog State Tracking | Publish as a conference paper at EMNLP 2020 | null | null | null | cs.CL | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider a new perspective on dialog state tracking (DST), the task of
estimating a user's goal through the course of a dialog. By formulating DST as
a semantic parsing task over hierarchical representations, we can incorporate
semantic compositionality, cross-domain knowledge sharing and co-reference. We
present TreeDST, a dataset of 27k conversations annotated with tree-structured
dialog states and system acts. We describe an encoder-decoder framework for DST
with hierarchical representations, which leads to 20% improvement over
state-of-the-art DST approaches that operate on a flat meaning space of
slot-value pairs.
| [{'version': 'v1', 'created': 'Sat, 24 Oct 2020 04:10:32 GMT'}
{'version': 'v2', 'created': 'Mon, 5 Apr 2021 04:33:00 GMT'}
{'version': 'v3', 'created': 'Thu, 13 May 2021 18:02:43 GMT'}] | 2021-05-17 | [array(['Cheng', 'Jianpeng', ''], dtype=object)
array(['Agrawal', 'Devang', ''], dtype=object)
array(['Alonso', 'Hector Martinez', ''], dtype=object)
array(['Bhargava', 'Shruti', ''], dtype=object)
array(['Driesen', 'Joris', ''], dtype=object)
array(['Flego', 'Federico', ''], dtype=object)
array(['Ghosh', 'Shaona', ''], dtype=object)
array(['Kaplan', 'Dain', ''], dtype=object)
array(['Kartsaklis', 'Dimitri', ''], dtype=object)
array(['Li', 'Lin', ''], dtype=object)
array(['Piraviperumal', 'Dhivya', ''], dtype=object)
array(['Williams', 'Jason D', ''], dtype=object)
array(['Yu', 'Hong', ''], dtype=object)
array(['Seaghdha', 'Diarmuid O', ''], dtype=object)
array(['Johannsen', 'Anders', ''], dtype=object)] |
19,471 | 1612.03676 | Stephan Fackler | Wolfgang Arendt, Dominik Dier and Stephan Fackler | J. L. Lions' Problem on Maximal Regularity | 11 pages, 1 figure | null | null | null | math.FA math.AP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This is a survey on recent progress concerning maximal regularity of
non-autonomous equations governed by time-dependent forms on a Hilbert space.
It also contains two new results showing the limits of the theory.
| [{'version': 'v1', 'created': 'Mon, 12 Dec 2016 13:50:52 GMT'}] | 2016-12-13 | [array(['Arendt', 'Wolfgang', ''], dtype=object)
array(['Dier', 'Dominik', ''], dtype=object)
array(['Fackler', 'Stephan', ''], dtype=object)] |
19,472 | 1008.1084 | David G. Radcliffe | David G. Radcliffe | Hyperreflection groups | This paper has been withdrawn due to errors in some proofs | null | null | null | math.GR math.GT | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We introduce the concept of hyperreflection groups, which are a
generalization of Coxeter groups. We prove the Deletion and Exchange Conditions
for hyperreflection groups, and we discuss special subgroups and fundamental
sectors of hyperreflection groups. In the second half of the paper, we prove
that Coxeter groups and graph products of groups are examples of
hyperreflection groups.
| [{'version': 'v1', 'created': 'Thu, 5 Aug 2010 21:02:05 GMT'}
{'version': 'v2', 'created': 'Sat, 20 Sep 2014 01:57:07 GMT'}] | 2014-09-23 | [array(['Radcliffe', 'David G.', ''], dtype=object)] |
19,473 | 1609.03174 | Stafford Withington Prof. | S. Withington, C. N. Thomas, and D. J. Goldie | Probing Quantum Correlation Functions Through Energy Absorption
Interferometry | 14 pages, 4 figures | Phys. Rev. A 96, 022131 (2017) | 10.1103/PhysRevA.96.022131 | null | quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | An interferometric technique is proposed for determining the spatial forms of
the individual degrees of freedom through which a many body system can absorb
energy from its environment. The method separates out the coherent excitations
present at any given frequency; it is not necessary to infer modal content from
spectra. The system under test is excited with two external sources, which
create generalized forces, and the fringe in the total power dissipated is
measured as the relative phase between the sources is varied. If the complex
fringe visibility is measured for different pairs of source locations, the
anti-Hermitian part of the complex-valued non-local correlation tensor can be
determined, which can then be decomposed to give the natural dynamical modes of
the system and their relative responsivities. If each source in the
interferometer creates a different kind of force, the spatial forms of the
individual excitations that are responsible for cross-correlated response can
be found. The technique is a generalization of holography because it measures
the state of coherence to which the system is maximally sensitive. It can be
applied across a wide range of wavelengths, in a variety of ways, to
homogeneous media, thin films, patterned structures, and to components such as
sensors, detectors and energy harvesting absorbers.
| [{'version': 'v1', 'created': 'Sun, 11 Sep 2016 15:44:55 GMT'}] | 2017-08-30 | [array(['Withington', 'S.', ''], dtype=object)
array(['Thomas', 'C. N.', ''], dtype=object)
array(['Goldie', 'D. J.', ''], dtype=object)] |
19,474 | math/0102057 | Saharon Shelah's Office | Oren Kolman and Saharon Shelah | Almost disjoint pure subgroups of the Baer-Specker group | null | Abelian groups and modules (Dublin, 1998), Trends in Mathematics,
225-230, Birkhauser, Basel, 1999 | null | Shelah [KlSh:683] | math.LO | null | We prove in ZFC that the Baer-Specker group Z^omega has 2^{aleph_1} non-free
pure subgroups of cardinality aleph_1 which are almost disjoint: there is no
non-free subgroup embeddable in any pair.
| [{'version': 'v1', 'created': 'Wed, 7 Feb 2001 20:05:44 GMT'}] | 2007-05-23 | [array(['Kolman', 'Oren', ''], dtype=object)
array(['Shelah', 'Saharon', ''], dtype=object)] |
19,475 | 2208.12346 | Yo Yehudi | Yo Yehudi, Lukas Hughes-Noehrer, Carole Goble, Caroline Jay | Subjective data models in bioinformatics: Do wet-lab and computational
biologists comprehend data differently? | 18 pages, 1 figure, 3 tables | null | null | null | cs.HC | http://creativecommons.org/licenses/by/4.0/ | Biological science produces large amounts of data in a variety of formats,
which necessitates the use of computational tools to process, integrate,
analyse, and glean insights from the data. Researchers who use computational
biology tools range from those who use computers primarily for communication
and data lookup, to those who write complex software programs in order to
analyse data or make it easier for others to do so. This research examines how
people differ in how they conceptualise the same data, for which we coin the
term "subjective data models".
We interviewed 22 people with biological experience and varied levels of
computational experience to elicit their perceptions of the same subset of
biological data entities. The results suggest that many people had fluid
subjective data models that would change depending on the circumstance or tool
they were using. Surprisingly, results generally did not seem to cluster around
a participant's computational experience/education levels, or the lack thereof.
We further found that people did not consistently map entities from an abstract
data model to the same identifiers in real-world files, and found that certain
data identifier formats were easier for participants to infer meaning from than
others.
Real-world implications of these findings suggests that 1) software engineers
should design interfaces for task performance and emulate other related popular
user interfaces, rather than targeting a person's professional background; 2)
when insufficient context is provided, people may guess what data means,
whether or not their guesses are correct, emphasising the importance of
providing contextual metadata when preparing data for re-use by other, to
remove the need for potentially erroneous guesswork.
| [{'version': 'v1', 'created': 'Thu, 25 Aug 2022 21:09:54 GMT'}] | 2022-08-29 | [array(['Yehudi', 'Yo', ''], dtype=object)
array(['Hughes-Noehrer', 'Lukas', ''], dtype=object)
array(['Goble', 'Carole', ''], dtype=object)
array(['Jay', 'Caroline', ''], dtype=object)] |
19,476 | 2102.05338 | Santiago Garcia | Santiago Garcia | Group Quantization of Quadratic Hamiltonians in Finance | null | null | null | null | q-fin.MF | http://creativecommons.org/licenses/by/4.0/ | The Group Quantization formalism is a scheme for constructing a functional
space that is an irreducible infinite dimensional representation of the Lie
algebra belonging to a dynamical symmetry group. We apply this formalism to the
construction of functional space and operators for quadratic potentials --
gaussian pricing kernels in finance. We describe the Black-Scholes theory, the
Ho-Lee interest rate model and the Euclidean repulsive and attractive
oscillators. The symmetry group used in this work has the structure of a
principal bundle with base (dynamical) group a semi-direct extension of the
Heisenberg-Weyl group by SL(2,R), and structure group (fiber) the positive real
line.
| [{'version': 'v1', 'created': 'Wed, 10 Feb 2021 09:22:32 GMT'}
{'version': 'v2', 'created': 'Wed, 17 Feb 2021 13:22:34 GMT'}] | 2021-02-18 | [array(['Garcia', 'Santiago', ''], dtype=object)] |
19,477 | 2008.12502 | Stefan Neuwirth | Mar\'ia Emilia Alonso Garc\'ia, Henri Lombardi (LMB), Stefan Neuwirth
(LMB) | On a theorem by de Felipe and Teissier about the comparison of two
henselisations in the non-noetherian case | null | Journal of Algebra, Elsevier, 2021, 570, pp.587-594 | 10.1016/j.jalgebra.2020.11.020 | null | math.AC math.AG | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Let R be a local domain, v a valuation of its quotient field centred in R at
its maximal ideal. We investigate the relationship between R^h, the
henselisation of R as local ring, and {\~v}, the henselisation of the valuation
v, by focussing on the recent result by de Felipe and Teissier referred to in
the title. We give a new proof that simplifies the original one by using purely
algebraic arguments. This proof is moreover constructive in the sense of Bishop
and previous work of the authors, and allows us to obtain as a by-product a
(slight) generalisation of the theorem by de Felipe and Teissier.
| [{'version': 'v1', 'created': 'Fri, 28 Aug 2020 06:55:07 GMT'}
{'version': 'v2', 'created': 'Thu, 14 Jan 2021 09:58:34 GMT'}] | 2021-01-15 | [array(['García', 'María Emilia Alonso', '', 'LMB'], dtype=object)
array(['Lombardi', 'Henri', '', 'LMB'], dtype=object)
array(['Neuwirth', 'Stefan', '', 'LMB'], dtype=object)] |
19,478 | 1509.04817 | Michael Chipeta | Michael Chipeta, Peter J. Diggle | Comment on Article by Ferreira and Gamerman | Published at http://dx.doi.org/10.1214/15-BA944A in the Bayesian
Analysis (http://projecteuclid.org/euclid.ba) by the International Society of
Bayesian Analysis (http://bayesian.org/) | Bayesian Analysis 2015, Vol. 10, No. 3, 737-739 | 10.1214/15-BA944A | VTeX-BA-BA944A | math.ST stat.TH | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Comment on Article by Ferreira and Gamerman [arXiv:1509.03410].
| [{'version': 'v1', 'created': 'Wed, 16 Sep 2015 06:14:38 GMT'}] | 2015-09-17 | [array(['Chipeta', 'Michael', ''], dtype=object)
array(['Diggle', 'Peter J.', ''], dtype=object)] |
19,479 | 2212.05805 | Junhui Zhang | Junhui Zhang, Junjie Pan, Xiang Yin, Zejun Ma | Direct Speech-to-speech Translation without Textual Annotation using
Bottleneck Features | 4 pages, 3 figures | null | null | null | cs.CL cs.SD eess.AS | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Speech-to-speech translation directly translates a speech utterance to
another between different languages, and has great potential in tasks such as
simultaneous interpretation. State-of-art models usually contains an auxiliary
module for phoneme sequences prediction, and this requires textual annotation
of the training dataset. We propose a direct speech-to-speech translation model
which can be trained without any textual annotation or content information.
Instead of introducing an auxiliary phoneme prediction task in the model, we
propose to use bottleneck features as intermediate training objectives for our
model to ensure the translation performance of the system. Experiments on
Mandarin-Cantonese speech translation demonstrate the feasibility of the
proposed approach and the performance can match a cascaded system with respect
of translation and synthesis qualities.
| [{'version': 'v1', 'created': 'Mon, 12 Dec 2022 10:03:10 GMT'}] | 2022-12-13 | [array(['Zhang', 'Junhui', ''], dtype=object)
array(['Pan', 'Junjie', ''], dtype=object)
array(['Yin', 'Xiang', ''], dtype=object)
array(['Ma', 'Zejun', ''], dtype=object)] |
19,480 | 1608.08624 | Abril Su\'arez | Abril Su\'arez, Pierre-Henri Chavanis | Cosmological evolution of a complex scalar field with repulsive or
attractive self-interaction | 42 pages, 23 figures. Accepted for publication in Phys. Rev. D | Phys. Rev. D 95, 063515 (2017) | 10.1103/PhysRevD.95.063515 | null | gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the cosmological evolution of a complex scalar field with a
self-interaction potential $V(|\varphi|^2)$, possibly describing
self-gravitating Bose-Einstein condensates, using a fully general relativistic
treatment. We generalize the hydrodynamic representation of the
Klein-Gordon-Einstein equations in the weak field approximation developed in
our previous paper. We establish the general equations governing the evolution
of a spatially homogeneous complex scalar field in an expanding background. We
show how they can be simplified in the fast oscillation regime and derive the
equation of state of the scalar field in parametric form for an arbitrary
potential. We explicitly consider the case of a quartic potential with
repulsive or attractive self-interaction and determine the phase diagram of the
scalar field. We show that the transition between the weakly self-interacting
regime and the strongly self-interacting regime depends on how the scattering
length of the bosons compares with their effective Schwarzschild radius. We
also constrain the parameters of the scalar field from astrophysical and
cosmological observations. Numerical applications are made for ultralight
bosons without self-interaction (fuzzy dark matter), for bosons with repulsive
self-interaction, and for bosons with attractive self-interaction (QCD axions
and ultralight axions).
| [{'version': 'v1', 'created': 'Tue, 30 Aug 2016 21:25:32 GMT'}
{'version': 'v2', 'created': 'Wed, 8 Feb 2017 02:44:36 GMT'}] | 2017-03-22 | [array(['Suárez', 'Abril', ''], dtype=object)
array(['Chavanis', 'Pierre-Henri', ''], dtype=object)] |
19,481 | 2304.10240 | Marco Ruggieri | Bonan Zhang, David E. A. Castillo, Ana G. Grunfeld and Marco Ruggieri | Exploring the axion potential and axion walls in dense quark matter | 10 pages, 7 figures | null | null | null | hep-ph nucl-th | http://creativecommons.org/publicdomain/zero/1.0/ | We study the potential of the Quantum Chromodynamics axion in hot and/or
dense quark matter, within a Nambu-Jona-Lasinio-like model that includes the
coupling of the axion to quarks. Differently from previous studies, we
implement local electrical neutrality and $\beta-$equilibrium, which are
relevant for the description of the quark matter in the core of compact stellar
objects. Firstly we compute the effects of the chiral crossover on the axion
mass and self-coupling. We find that the low energy properties of axion are
very sensitive to the phase transition of Quantum Chromodynamics, in
particular, when the bulk quark matter is close to criticality. Then, for the
first time in the literature we compute the axion potential at finite quark
chemical potential and study the axion domain walls in bulk quark matter. We
find that the energy barrier between two adjacent vacuum states decrease in the
chirally restored phase: this results in a lower surface tension of the walls.
Finally, we comment on the possibility of production of walls in dense quark
matter.
| [{'version': 'v1', 'created': 'Thu, 20 Apr 2023 11:58:58 GMT'}] | 2023-04-21 | [array(['Zhang', 'Bonan', ''], dtype=object)
array(['Castillo', 'David E. A.', ''], dtype=object)
array(['Grunfeld', 'Ana G.', ''], dtype=object)
array(['Ruggieri', 'Marco', ''], dtype=object)] |
19,482 | 1412.6264 | Taraka Rama Kasicheyanula | Taraka Rama K | Supertagging: Introduction, learning, and application | null | null | null | null | cs.CL | http://creativecommons.org/licenses/by-nc-sa/3.0/ | Supertagging is an approach originally developed by Bangalore and Joshi
(1999) to improve the parsing efficiency. In the beginning, the scholars used
small training datasets and somewhat na\"ive smoothing techniques to learn the
probability distributions of supertags. Since its inception, the applicability
of Supertags has been explored for TAG (tree-adjoining grammar) formalism as
well as other related yet, different formalisms such as CCG. This article will
try to summarize the various chapters, relevant to statistical parsing, from
the most recent edited book volume (Bangalore and Joshi, 2010). The chapters
were selected so as to blend the learning of supertags, its integration into
full-scale parsing, and in semantic parsing.
| [{'version': 'v1', 'created': 'Fri, 19 Dec 2014 09:53:57 GMT'}] | 2014-12-22 | [array(['K', 'Taraka Rama', ''], dtype=object)] |
19,483 | 2203.02821 | Yalan Song | Xiaofeng Liu, Yalan Song, Chaopeng Shen | Bathymetry Inversion using a Deep-Learning-Based Surrogate for Shallow
Water Equations Solvers | null | null | null | null | physics.flu-dyn cs.LG | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | River bathymetry is critical for many aspects of water resources management.
We propose and demonstrate a bathymetry inversion method using a
deep-learning-based surrogate for shallow water equations solvers. The
surrogate uses the convolutional autoencoder with a shared-encoder,
separate-decoder architecture. It encodes the input bathymetry and decodes to
separate outputs for flow-field variables. A gradient-based optimizer is used
to perform bathymetry inversion with the trained surrogate. Two
physically-based constraints on both bed elevation value and slope have to be
added as inversion loss regularizations to obtain usable inversion results.
Using the "L-curve" criterion, a heuristic approach was proposed to determine
the regularization parameters. Both the surrogate model and the inversion
algorithm show good performance. We found the bathymetry inversion process has
two distinctive stages, which resembles the sculptural process of initial
broad-brush calving and final detailing. The inversion loss due to flow
prediction error reaches its minimum in the first stage and remains almost
constant afterward. The bed elevation value and slope regularizations play the
dominant role in the second stage in selecting the most probable solution. We
also found the surrogate architecture (whether with both velocity and water
surface elevation or velocity only as outputs) does not show significant impact
on inversion result.
| [{'version': 'v1', 'created': 'Sat, 5 Mar 2022 21:49:24 GMT'}] | 2022-03-08 | [array(['Liu', 'Xiaofeng', ''], dtype=object)
array(['Song', 'Yalan', ''], dtype=object)
array(['Shen', 'Chaopeng', ''], dtype=object)] |
19,484 | 2006.10970 | Rudra Narayan Padhan | Rudra Narayan Padhan, Nupur Nandi and K. C. Pati | On $2$-Nilpotent Multiplier of Lie Superalgebras | null | null | null | null | math.RA | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this article we define the $c$-nilpotent multiplier of a finite
dimensional Lie suepralgebra. We characterize the structure of $2$-nilpotent
multiplier of finite dimensional nilpotent Lie superalgebras whose derived
subalgebras have dimension at most one. Then we give an upper bound on the
dimension of $2$-nilpotent multiplier of any finite dimensional nilpotent Lie
superalgebra. Moreover, we discuses the $2$-capability of special as well as
odd Heisenberg Lie superalgebras and abelian Lie superalgebras.
| [{'version': 'v1', 'created': 'Fri, 19 Jun 2020 05:37:08 GMT'}] | 2020-06-22 | [array(['Padhan', 'Rudra Narayan', ''], dtype=object)
array(['Nandi', 'Nupur', ''], dtype=object)
array(['Pati', 'K. C.', ''], dtype=object)] |
19,485 | 1909.03709 | Anupam Singh Dr. | Yash Arora and Anupam Singh | Two Generation of Finite Simple Groups | null | The Mathematics Consortium Bulletin Vol. 1, Issue 4, April 2020 | null | null | math.GR math.RT | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | This expository article revolves around the question to find short
presentations of finite simple groups. This subject is one of the most active
research areas of group theory in recent times. We bring together several known
results on two-generation and $(2,3)$-generation of finite simple groups and
how it impacts computational group theory.
| [{'version': 'v1', 'created': 'Mon, 9 Sep 2019 09:14:19 GMT'}
{'version': 'v2', 'created': 'Sat, 30 Nov 2019 03:05:50 GMT'}] | 2020-05-19 | [array(['Arora', 'Yash', ''], dtype=object)
array(['Singh', 'Anupam', ''], dtype=object)] |
19,486 | 2105.06904 | Dermot Green | A. R. Swann and D. G. Green | Positron cooling via inelastic collisions in CF$_4$ and N$_2$ gases | 6 pages, 7 figures | Phys. Rev. Lett. 130, 033001 (2023) | 10.1103/PhysRevLett.130.033001 | null | physics.atom-ph quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Positron cooling via inelastic collisions in CF$_4$ and N$_2$ gases is
simulated, including positron-positron interactions. Owing to the molecular
symmetries, cooling is assumed to be chiefly due to energy loss via vibrational
(rotational) excitations for CF$_4$ (N$_2$). For CF$_4$, it is found that the
inclusion of the dipole-inactive $\nu_1$ mode, in addition to the dipole-active
modes $\nu_3$ and $\nu_4$, can provide room-temperature thermalization and an
accurate cooling timescale. Combination cooling enabled by the $\nu_1$ mode,
and positron-positron interactions both contribute to the Maxwellianization of
the positron momentum distribution. For both gases the evolution of the
positron temperature is found to be in excellent agreement with experiment.
| [{'version': 'v1', 'created': 'Fri, 14 May 2021 15:43:39 GMT'}] | 2023-03-23 | [array(['Swann', 'A. R.', ''], dtype=object)
array(['Green', 'D. G.', ''], dtype=object)] |
19,487 | 1702.08328 | Thorsten Wissmann | Olivier Bournez and Amaury Pouly | A Universal Ordinary Differential Equation | null | Logical Methods in Computer Science, Volume 16, Issue 1 (February
28, 2020) lmcs:4437 | 10.23638/LMCS-16(1:28)2020 | null | math.CA cs.CC cs.LO cs.SY math.DS | http://creativecommons.org/licenses/by/4.0/ | An astonishing fact was established by Lee A. Rubel (1981): there exists a
fixed non-trivial fourth-order polynomial differential algebraic equation (DAE)
such that for any positive continuous function $\varphi$ on the reals, and for
any positive continuous function $\epsilon(t)$, it has a $\mathcal{C}^\infty$
solution with $| y(t) - \varphi(t) | < \epsilon(t)$ for all $t$. Lee A. Rubel
provided an explicit example of such a polynomial DAE. Other examples of
universal DAE have later been proposed by other authors. However, Rubel's DAE
\emph{never} has a unique solution, even with a finite number of conditions of
the form $y^{(k_i)}(a_i)=b_i$.
The question whether one can require the solution that approximates $\varphi$
to be the unique solution for a given initial data is a well known open problem
[Rubel 1981, page 2], [Boshernitzan 1986, Conjecture 6.2]. In this article, we
solve it and show that Rubel's statement holds for polynomial ordinary
differential equations (ODEs), and since polynomial ODEs have a unique solution
given an initial data, this positively answers Rubel's open problem. More
precisely, we show that there exists a \textbf{fixed} polynomial ODE such that
for any $\varphi$ and $\epsilon(t)$ there exists some initial condition that
yields a solution that is $\epsilon$-close to $\varphi$ at all times.
In particular, the solution to the ODE is necessarily analytic, and we show
that the initial condition is computable from the target function and error
function.
| [{'version': 'v1', 'created': 'Mon, 20 Feb 2017 17:02:15 GMT'}
{'version': 'v2', 'created': 'Sat, 29 Apr 2017 07:08:14 GMT'}
{'version': 'v3', 'created': 'Mon, 9 Apr 2018 21:17:58 GMT'}
{'version': 'v4', 'created': 'Thu, 2 May 2019 20:50:04 GMT'}
{'version': 'v5', 'created': 'Tue, 3 Dec 2019 16:54:47 GMT'}
{'version': 'v6', 'created': 'Thu, 27 Feb 2020 14:14:16 GMT'}] | 2023-06-22 | [array(['Bournez', 'Olivier', ''], dtype=object)
array(['Pouly', 'Amaury', ''], dtype=object)] |
19,488 | 1309.7863 | Philipp M\"uller | Philipp M\"uller and J\"urgen Eschner | Single calcium-40 ion as quantum memory for photon polarization: a case
study | reviewed and published version | Appl. Phys. B (2014) Volume 114, 303 | 10.1007/s00340-013-5681-1 | null | quant-ph physics.atom-ph physics.optics | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present several schemes for heralded storage of polarization states of
single photons in single ions, using the calcium-40 ion and photons at 854 nm
wavelength as specific example. We compare the efficiencies of the schemes and
the requirements for their implementation with respect to the preparation of
the initial state of the ion, the absorption process and its analysis. These
schemes may be used to create and herald entanglement of two distant ions
through entanglement swapping; they are easily adapted to other atomic systems
and wavelengths.
| [{'version': 'v1', 'created': 'Mon, 30 Sep 2013 14:38:26 GMT'}
{'version': 'v2', 'created': 'Wed, 6 Nov 2013 17:14:14 GMT'}] | 2014-02-20 | [array(['Müller', 'Philipp', ''], dtype=object)
array(['Eschner', 'Jürgen', ''], dtype=object)] |
19,489 | 2209.12145 | Ruipeng Zhang | Ruipeng Zhang, Chen Xu, Mengjun Xie | Secure Decentralized IoT Service Platform using Consortium Blockchain | null | null | 10.3390/s22218186 | null | cs.CR cs.DC | http://creativecommons.org/licenses/by-sa/4.0/ | Blockchain technology has gained increasing popularity in the research of
Internet of Things (IoT) systems in the past decade. As a distributed and
immutable ledger secured by strong cryptography algorithms, the blockchain
brings a new perspective to secure IoT systems. Many studies have been devoted
to integrating blockchain into IoT device management, access control, data
integrity, security, and privacy. In comparison, the blockchain-facilitated IoT
communication is much less studied. Nonetheless, we see the potential of
blockchain in decentralizing and securing IoT communications. This paper
proposes an innovative IoT service platform powered by consortium blockchain
technology. The presented solution abstracts machine-to-machine (M2M) and
human-to-machine (H2M) communications into services provided by IoT devices.
Then, it materializes data exchange of the IoT network through smart contracts
and blockchain transactions. Additionally, we introduce the auxiliary storage
layer to the proposed platform to address various data storage requirements.
Our proof-of-concept implementation is tested against various workloads and
connection sizes under different block configurations to evaluate the
platform's transaction throughput, latency, and hardware utilization. The
experiment results demonstrate that our solution can maintain high performance
under most testing scenarios and provide valuable insights on optimizing the
blockchain configuration to achieve the best performance.
| [{'version': 'v1', 'created': 'Sun, 25 Sep 2022 04:37:31 GMT'}] | 2022-10-31 | [array(['Zhang', 'Ruipeng', ''], dtype=object)
array(['Xu', 'Chen', ''], dtype=object)
array(['Xie', 'Mengjun', ''], dtype=object)] |
19,490 | astro-ph/9703010 | Pascale Jablonka | P. Jablonka | Stellar populations in bulges of spiral galaxies | 6 Pages. Contributed talk at the 3rd ESO-VLT Workshop "Galaxy Scaling
Relations: Origins, Evolution and Applications", Garching, 18-20 November
1996 | null | null | null | astro-ph | null | We discuss the integrated properties of the stellar population in bulges
along the Hubble sequence and new HST data for individual stars in the bulge of
M31.
| [{'version': 'v1', 'created': 'Mon, 3 Mar 1997 10:52:40 GMT'}] | 2007-05-23 | [array(['Jablonka', 'P.', ''], dtype=object)] |
19,491 | 2202.08988 | Pawaton Kaemawichanurat | Nuttanon Songsuwan, Pawaton Kaemawichanurat | Drunk Angel and Hiding Devil | null | null | null | null | math.CO | http://creativecommons.org/licenses/by/4.0/ | The angel game is played on $2$-dimensional infinite grid by $2$ players, the
angel and the devil. In each turn, the angel of power $c$ moves from her
current point $(x, y)$ to a point $(x', y')$ which $\max\{|x - x'|, |y - y'|\}
\leq c$ while the devil destroys a point in his turn. The angel can no longer
land on the destroyed points. The angel wins if she has a strategy to escape
from the devil forever and the devil wins if he can cage the angel in his
destroyed points by a finite number of turns. It was proved that the angel of
power $2$ always wins. In this paper, we rise the problem when the angel is
drunk. She randomly moves to any point in the range of her power in each turn.
In our game version, the devil must cage the angel by a given finite number of
turns, otherwise the angel wins. We present a strategy for the devil that: if
the devil plays with this strategy, then for given $c \in \mathbb{N}$ and
$\epsilon > 0$, the devil can cage the angel of power $c$ with probability
greater than $1 - \epsilon$ if and only if the game is played on an
$n$-dimensional infinite grid when $n \leq 2$. The numerical simulation results
are presented in the last section.
| [{'version': 'v1', 'created': 'Fri, 18 Feb 2022 02:37:15 GMT'}] | 2022-02-21 | [array(['Songsuwan', 'Nuttanon', ''], dtype=object)
array(['Kaemawichanurat', 'Pawaton', ''], dtype=object)] |
19,492 | 2205.03434 | Sudip Kumar Sarkar | Sudip Kumar Sarkar, Priya Maheshwari, P. K. Pujari, Aniruddha Biswas | Co-evolution of point defects and Cr-rich nano-phase in binary Fe-20
at.% Cr alloy: A comprehensive investigation using positron annihilation
spectroscopy and atom probe tomography | 51 pages, 13 figures | null | null | null | cond-mat.mtrl-sci | http://creativecommons.org/licenses/by-nc-nd/4.0/ | The role of point defects in temporal evolution of Cr-rich alpha-prime phase
separation in binary Fe-20 at.% Cr alloy is elucidated by intercepting the long
term (upto 1000 h at 773 K) aging at regular intervals and probing by a
combination of atom probe tomography (APT) and positron annihilation
spectroscopy (PAS). Since the Cr concentration of nano-scale {\alpha}/ phase in
Fe-20 at.% Cr alloy increases continually on aging, the point defects play
active role throughout the aging duration. The near-atomic resolution of APT
and self-seeking ability of positrons towards point defects make this analysis
possible. The difference of positron affinities between Fe and Cr enables
identification of the Cr-rich nano-phases that are specifically associated with
defects; they would otherwise be indiscernible in the absence of defect. Thus,
the temporal evolution of Cr-rich nano-phase along with the associated point
defects can be fully characterized at each stage of aging using APT and PAS,
respectively. The combined APT-PAS study shows that Cr-rich alpha-prime
precipitation is preceded by vacancy-Cr complexes that act as nucleation sites
for Cr clusters, which in turn, cause an early rise in micro-hardness due to
cluster hardening. Interestingly, this is accompanied by a significant rise in
point defect concentration. Our results depict that the vacancies present in
the core of the alpha-prime precipitates migrate towards the precipitates
interface during the course of aging and eventually get recovered resulting in
virtually defect-free precipitates. This study chronicles the way the point
defects shape the process of alpha-prime phase separation throughout the entire
length of aging.
| [{'version': 'v1', 'created': 'Fri, 6 May 2022 18:10:33 GMT'}] | 2022-05-10 | [array(['Sarkar', 'Sudip Kumar', ''], dtype=object)
array(['Maheshwari', 'Priya', ''], dtype=object)
array(['Pujari', 'P. K.', ''], dtype=object)
array(['Biswas', 'Aniruddha', ''], dtype=object)] |
19,493 | 2202.06680 | Taku Ito | Taku Ito | Quantitative estimate of diameter for weighted manifolds under integral
curvature bounds and $\varepsilon$-range | 23pages. Comments are welcome! | null | null | null | math.DG | http://creativecommons.org/licenses/by/4.0/ | In this article, we extend the compactness theorems proved by Sprouse and
Hwang-Lee to a weighted manifold under the assumption that the weighted Ricci
curvature is bounded below in terms of its weight function. With the help of
the $\varepsilon$-range, we treat the case that the effective dimension is at
most $1$ in addition to the case that the effective dimension is at least the
dimension of the manifold. To show these theorems, we extend the segment
inequality of Cheeger-Colding to a weighted manifold.
| [{'version': 'v1', 'created': 'Mon, 14 Feb 2022 13:06:55 GMT'}] | 2022-02-16 | [array(['Ito', 'Taku', ''], dtype=object)] |
19,494 | 1410.3357 | Erin Kara | E. Kara, A. Zoghbi, A. Marinucci, D. J. Walton, A. C. Fabian, G.
Risaliti, S. E. Boggs, F. E. Christensen, F. Fuerst, C. J. Hailey, F. A.
Harrison, G. Matt, M. L. Parker, C. S. Reynolds, D. Stern and W. W. Zhang | Iron K and Compton hump reverberation in SWIFT J2127.4+5654 and NGC 1365
revealed by NuSTAR and XMM-Newton | 14 Pages, 12 figures, accepted to MNRAS | null | 10.1093/mnras/stu2136 | null | astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the past five years, a flurry of X-ray reverberation lag measurements of
accreting supermassive black holes have been made using the XMM-Newton
telescope in the 0.3-10 keV energy range. In this work, we use the NuSTAR
telescope to extend the lag analysis up to higher energies for two Seyfert
galaxies, SWIFT J2127.4+5654 and NGC 1365. X-ray reverberation lags are due to
the light travel time delays between the direct continuum emission and the
reprocessed emission from the inner radii of an ionised accretion disc.
XMM-Newton has been particularly adept at measuring the lag associated with the
broad Fe K emission line, where the gravitationally redshifted wing of the line
is observed to respond before the line centroid at 6.4 keV, produced at larger
radii. Now we use NuSTAR to probe the lag at higher energies, where the
spectrum shows clear evidence for Compton reflection, known as the Compton
'hump'. The XMM-Newton data show Fe K lags in both SWIFT J2127.4+5654 and NGC
1365. The NuSTAR data provide independent confirmation of these Fe K lags, and
also show evidence for the corresponding Compton hump lags, especially in SWIFT
J2127.4+5654. These broadband lag measurements confirm that the Compton hump
and Fe K lag are produced at small radii. At low-frequencies in NGC 1365, where
the spectrum shows evidence for eclipsing clouds in the line of sight, we find
a clear negative (not positive) lag from 2--10 keV, which can be understood as
the decrease in column density from a neutral eclipsing cloud moving out of our
line of sight during the observation.
| [{'version': 'v1', 'created': 'Mon, 13 Oct 2014 15:40:11 GMT'}] | 2015-06-23 | [array(['Kara', 'E.', ''], dtype=object)
array(['Zoghbi', 'A.', ''], dtype=object)
array(['Marinucci', 'A.', ''], dtype=object)
array(['Walton', 'D. J.', ''], dtype=object)
array(['Fabian', 'A. C.', ''], dtype=object)
array(['Risaliti', 'G.', ''], dtype=object)
array(['Boggs', 'S. E.', ''], dtype=object)
array(['Christensen', 'F. E.', ''], dtype=object)
array(['Fuerst', 'F.', ''], dtype=object)
array(['Hailey', 'C. J.', ''], dtype=object)
array(['Harrison', 'F. A.', ''], dtype=object)
array(['Matt', 'G.', ''], dtype=object)
array(['Parker', 'M. L.', ''], dtype=object)
array(['Reynolds', 'C. S.', ''], dtype=object)
array(['Stern', 'D.', ''], dtype=object)
array(['Zhang', 'W. W.', ''], dtype=object)] |
19,495 | 2001.07682 | Claude Fleming | Claude Fleming, Bertrand Delamotte, Shunsuke Yabunaka | The finite $N$ origin of the Bardeen-Moshe-Bander phenomenon and its
extension at $N=\infty$ by singular fixed points | 6 pages+appendices, 2 figures | Phys. Rev. D 102, 065008 (2020) | 10.1103/PhysRevD.102.065008 | null | hep-th cond-mat.stat-mech | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the $O(N)$ model in dimension three (3$d$) at large and infinite $N$
and show that the line of fixed points found at $N=\infty$ --the
Bardeen-Moshe-Bander (BMB) line-- has an intriguing origin at finite $N$. The
large $N$ limit that allows us to find the BMB line must be taken on particular
trajectories in the $(d,N)$-plane: $d=3-\alpha/N$ and not at fixed dimension
$d=3$. Our study also reveals that the known BMB line is only half of the true
line of fixed points, the second half being made of singular fixed points. The
potentials of these singular fixed points show a cusp for a finite value of the
field and their finite $N$ counterparts a boundary layer.
| [{'version': 'v1', 'created': 'Tue, 21 Jan 2020 18:15:39 GMT'}] | 2020-09-16 | [array(['Fleming', 'Claude', ''], dtype=object)
array(['Delamotte', 'Bertrand', ''], dtype=object)
array(['Yabunaka', 'Shunsuke', ''], dtype=object)] |
19,496 | 1510.00890 | Bogdan Wojtsekhowski | B. Wojtsekhowski | To the measurement of the radius via an electron scattering | 6 pages, 1 figure, presented at APS/DNP meeting in Atlanta in 2012 | null | null | null | nucl-ex | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We propose an experiment for an accurate measurement of the proton radius. A
key feature of our proposal is an iron-free magnetic spectrometer. Projected
systematics uncertainties will allow a 1% level accuracy for the $r_p$ value.
| [{'version': 'v1', 'created': 'Sun, 4 Oct 2015 00:35:14 GMT'}] | 2015-10-06 | [array(['Wojtsekhowski', 'B.', ''], dtype=object)] |
19,497 | 1611.06018 | Maria Ekstr\"om K | Maria K. Ekstr\"om, Thomas Aref, Johan Runeson, Johan Bj\"orck, Isac
Bostr\"om and Per Delsing | Surface acoustic wave unidirectional transducers for quantum
applications | 4 pages (5 including references), 3 figures | null | 10.1063/1.4975803 | null | cond-mat.mes-hall | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The conversion efficiency of electric microwave signals into surface acoustic
waves in different types of superconducting transducers is studied with the aim
of quantum applications. We compare delay lines containing either conventional
symmetric transducers (IDTs) or unidirectional transducers (UDTs) at 2.3 GHz
and 10 mK. The UDT delay lines improve the insertion loss with 4.7 dB and a
directivity of 22 dB is found for each UDT, indicating that 99.4 % of the
acoustic power goes in the desired direction. The power lost in the undesired
direction accounts for more than 90 % of the total loss in IDT delay lines, but
only ~3 % percent of the total loss in the FEUDT delay lines.
| [{'version': 'v1', 'created': 'Fri, 18 Nov 2016 09:35:54 GMT'}] | 2017-03-08 | [array(['Ekström', 'Maria K.', ''], dtype=object)
array(['Aref', 'Thomas', ''], dtype=object)
array(['Runeson', 'Johan', ''], dtype=object)
array(['Björck', 'Johan', ''], dtype=object)
array(['Boström', 'Isac', ''], dtype=object)
array(['Delsing', 'Per', ''], dtype=object)] |
19,498 | 2005.07070 | Susanne Solem | Andr\'e H. Erhardt and Susanne Solem | On complex dynamics in a Purkinje and a ventricular cardiac cell model | null | null | 10.1016/j.cnsns.2020.105511 | null | math.DS physics.bio-ph q-bio.TO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Cardiac muscle cells can exhibit complex patterns including irregular
behaviour such as chaos or (chaotic) early afterdepolarisations (EADs), which
can lead to sudden cardiac death. Suitable mathematical models and their
analysis help to predict the occurrence of such phenomena and to decode their
mechanisms. The focus of this paper is the investigation of dynamics of cardiac
muscle cells described by systems of ordinary differential equations. This is
generically performed by studying a Purkinje cell model and a modified
ventricular cell model. We find chaotic dynamics with respect to the leak
current in the Purkinje cell model, and EADs and chaos with respect to a
reduced fast potassium current and an enhanced calcium current in the
ventricular cell model -- features that have been experimentally observed and
are known to exist in some models, but are new to the models under present
consideration. We also investigate the related monodomain models of both
systems to study synchronisation and the behaviour of the cells on macro-scale
in connection with the discovered features. The models show qualitatively the
same behaviour to what has been experimentally observed. However, for certain
parameter settings the dynamics occur within a non-physiological range.
| [{'version': 'v1', 'created': 'Wed, 13 May 2020 10:48:17 GMT'}
{'version': 'v2', 'created': 'Thu, 14 Jan 2021 10:40:31 GMT'}] | 2021-01-15 | [array(['Erhardt', 'André H.', ''], dtype=object)
array(['Solem', 'Susanne', ''], dtype=object)] |
19,499 | hep-ph/9406246 | null | Carl H. Albright and Satyanarayan Nandi | Comparison of SO(10)-Symmetric Fermion Mass Matrices with and without
Degenerate Neutrinos | 12 pages, FERMILAB-PUB-94/119-T and OSU Preprint 289, plain LaTeX | null | null | null | hep-ph | null | It has been recently suggested by others that one can simultaneously explain
the depletions of solar electron-neutrinos and atmospheric muon-neutrinos along
with a 7 eV neutrino component of mixed dark matter by postulating the
existence of nearly-degenerate 2 eV neutrinos with the correct mixing
parameters. We study this claim in the framework of a simple SO(10)-symmetric
model constructed from the low scale data using a bottom-up procedure recently
advanced by the authors and compare the results with and without degenerate
neutrinos.
| [{'version': 'v1', 'created': 'Tue, 7 Jun 1994 18:45:47 GMT'}] | 2007-05-23 | [array(['Albright', 'Carl H.', ''], dtype=object)
array(['Nandi', 'Satyanarayan', ''], dtype=object)] |
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