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Source: http://www.documentcloud.org/documents/6968736-CRID-1058477.html
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10.0
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Source: http://www.documentcloud.org/documents/6969366-CRID-1068802.html
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7.0
texts
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Source: http://www.documentcloud.org/documents/6975221-CRID-1049443.html
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9.0
Jul 7, 2020
07/20
by
Election Department
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Source: http://www.documentcloud.org/documents/6979561-2019-Krepchin-Ilana-YE.html
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Source: http://www.documentcloud.org/documents/6981881-07-06-20-01.html
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Jul 7, 2020
07/20
by
U.S. District Court via USA TODAY's big_cases bot
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Complaint, United States of America v. $39,422 in U.S. Currency, No. 6:20-cv-01184 (M.D. Fla. Jul 6, 2020)
Source: http://www.documentcloud.org/documents/6981868-Complaint.html
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10.0
Jul 30, 2018
07/18
by
Cesar Roberto de Souza; Adrien Gaidon; Yohann Cabon; Antonio Manuel Lopez Pena
data
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Procedural Human Action Videos (PHAV) ------------------------------------- This torrent contains the Procedural Human Action Videos (PHAV) dataset. This version of the dataset contains 39,982 videos that have been generated by a computer. The dataset is made available under the Creative Commons BY-NC-SA (Attribution-NonCommercial-ShareAlike 4.0 International) license. This sub- directory contains the Horizontal and Vertical Optical Flow Ground Truth data modality of these videos. A...
Topics: Action recognition, procedural generation, deep learning, video classification
Source: http://academictorrents.com/details/52719e28efd10da65fa9ed1539792988e0f5bcf3
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6.0
Jul 30, 2018
07/18
by
Cesar Roberto de Souza; Adrien Gaidon; Yohann Cabon; Antonio Manuel Lopez Pena
data
eye 6
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Procedural Human Action Videos (PHAV) ------------------------------------- This torrent contains the Procedural Human Action Videos (PHAV) dataset. This version of the dataset contains 39,982 videos that have been generated by a computer. The dataset is made available under the Creative Commons BY-NC-SA (Attribution-NonCommercial-ShareAlike 4.0 International) license. This sub- directory contains the Depth Map data modality of these videos. A human-readable version of the license terms is...
Topics: Action recognition, procedural generation, deep learning, video classification
Source: http://academictorrents.com/details/eb1ae18213ba0fb97e33ed773eea900a8374efd0
3
3.0
Jun 30, 2018
06/18
by
Arman Shojaeifard; Kai-Kit Wong; Marco Di Renzo; Gan Zheng; Khairi Ashour Hamdi; Jie Tang
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We consider a multi-user multiple-input multiple-output (MIMO) setup where full-duplex (FD) multi-antenna nodes apply linear beamformers to simultaneously transmit and receive multiple streams over Rician fading channels. The exact first and second positive moments of the residual self-interference (SI), involving the squared norm of a sum of non-identically distributed random variables, are derived in closed-form. The method of moments is hence invoked to provide a Gamma approximation for the...
Topics: Information Theory, Computing Research Repository, Mathematics
Source: http://arxiv.org/abs/1701.00277
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4.0
Jun 30, 2018
06/18
by
Guido Consolandi; Massimo Dotti; Alessandro Boselli; Giuseppe Gavazzi; Fabio Gargiulo
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We present an observational study of the effect of bars on the gas component and on the star formation properties of their host galaxies in a statistically significant sample of resolved objects, the $Herschel$ Reference Sample. The analysis of optical and far--infrared images allows us to identify a clear spatial correlation between stellar bars and the cold-gas distribution mapped by the warm dust emission. We find that the infrared counterparts of optically identified bars are either...
Topics: Astrophysics of Galaxies, Astrophysics
Source: http://arxiv.org/abs/1701.00364
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5.0
Jun 30, 2018
06/18
by
Saurav Bhaumik; Arunava Mandal
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Let $G$ be a connected Lie group. In this paper, we study the density of the images of individual power maps $P_k:G\to G:g\mapsto g^k$. We give criteria for the density of $P_k(G)$ in terms of regular elements, as well as Cartan subgroups. In fact, we prove that if ${\rm Reg}(G)$ is the set of regular elements of $G$, then $P_k(G)\cap {\rm Reg}(G)$ is closed in ${\rm Reg}(G)$. On the other hand, the weak exponentiality of $G$ turns out to be equivalent to the density of all the power maps...
Topics: Group Theory, Mathematics
Source: http://arxiv.org/abs/1701.00331
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4.0
Jun 30, 2018
06/18
by
Natalia Bondarenko
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The Sturm-Liouville operator on a star-shaped graph is considered. We assume that the potential is known a priori on all the edges except one, and study the partial inverse problem, which consists in recovering the potential on the remaining edge from the part of the spectrum. A constructive method is developed for the solution of this problem, based on the Riesz-basicity of some sequence of vector functions. The local solvability of the inverse problem and the stability of its solution are...
Topics: Spectral Theory, Mathematics
Source: http://arxiv.org/abs/1701.00219
4
4.0
Jun 30, 2018
06/18
by
Hassan Khodaiemehr; Dariush Kiani
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Quasi-cyclic (QC) low-density parity-check (LDPC) codes which are known as QC-LDPC codes, have many applications due to their simple encoding implementation by means of cyclic shift registers. In this paper, we construct QC-LDPC codes from group rings. A group ring is a free module (at the same time a ring) constructed in a natural way from any given ring and any given group. We present a structure based on the elements of a group ring for constructing QC-LDPC codes. Some of the previously...
Topics: Information Theory, Computing Research Repository, Mathematics
Source: http://arxiv.org/abs/1701.00210
3
3.0
Jun 30, 2018
06/18
by
A. Morozov
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Racah matrices and higher $j$-symbols are used in description of braiding properties of conformal blocks and in construction of knot polynomials. However, in complicated cases the logic is actually inverted: they are much better deduced from these applications than from the basic representation theory. Following the recent proposal of arXiv:1612.00422, we obtain the exclusive Racah matrix $\bar S$ for the currently-front-line case of representation $R=[3,1]$ with non-trivial multiplicities,...
Topics: High Energy Physics - Theory, Representation Theory, Mathematical Physics, Geometric Topology,...
Source: http://arxiv.org/abs/1701.00359
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5.0
Jun 30, 2018
06/18
by
Jun Guo; Chunxiao Cai; Long Ma; Kui Liu; Hengxin Sun; Jiangrui Gao
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Nonclassical beams in high order spatial modes have attracted much interest but they exhibit much less squeezing and entanglement than the fundamental spatial modes, limiting their applications. We experimentally demonstrate the relation between pump modes and entanglement of first-order HG modes (HG10 entangled states) in a type II OPO and show that the maximum entanglement of high order spatial modes can be obtained by optimizing the pump spatial mode. To our knowledge, this is the first time...
Topic: Quantum Physics
Source: http://arxiv.org/abs/1701.05333
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5.0
Jun 30, 2018
06/18
by
A. Antony Selvan
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Let $X=\{x_i:i\in\mathbb{Z}\}$, $\dots0$. Under certain conditions on $\phi$, it is proved that if there exists a positive integer $\nu$ such that $$\delta_\nu:=\sup\limits_{i\in\mathbb{Z}}(x_{i+\nu}-x_i)
Topics: Classical Analysis and ODEs, Mathematics
Source: http://arxiv.org/abs/1702.00170
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6.0
Jun 30, 2018
06/18
by
Björn H. Wellegehausen; Lorenz von Smekal
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We study generic properties of strongly interacting matter at finite density as relevant to heavy-ion collisions at moderate beam energies or the physics of neutron stars and their mergers. Because of the fermion-sign problem in lattice QCD, here we simulate QCD-like theories without this problem at finite density. These theories (two-color QCD, G2-QCD, or adjoint QCD) typically contain bosonic baryons, for example diquarks, or other more exotic states of matter. It is therefore important to...
Topic: High Energy Physics - Lattice
Source: http://arxiv.org/abs/1702.00238
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3.0
Jun 30, 2018
06/18
by
Jayesh Badwaik; Matthieu Boileau; David Coulette; Emmanuel Franck; Philippe Helluy; Laura Mendoza; Herbert Oberlin
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In this paper we present and implement the Palindromic Discontinuous Galerkin (PDG) method in dimensions higher than one. The method has already been exposed and tested in [4] in the one-dimensional context. The PDG method is a general implicit high order method for approximating systems of conservation laws. It relies on a kinetic interpretation of the conservation laws containing stiff relaxation terms. The kinetic system is approximated with an asymptotic-preserving high order DG method. We...
Topics: Numerical Analysis, Analysis of PDEs, Mathematics
Source: http://arxiv.org/abs/1702.00169
3
3.0
Jun 30, 2018
06/18
by
Susanna Manrubia; Jose A. Cuesta
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An essential quantity to ensure evolvability of populations is the navigability of the genotype space. Navigability relies on the existence of sufficiently large genotype networks, that is ensembles of sequences with the same phenotype that guarantee an efficient random drift through sequence space. The number of sequences compatible with a given structure (e.g. the number of RNA sequences folding into a particular secondary structure, or the number of DNA sequences coding for the same protein...
Topics: Physics, Populations and Evolution, Quantitative Biology, Biological Physics
Source: http://arxiv.org/abs/1702.00351
3
3.0
Jun 30, 2018
06/18
by
Petr Kuznetsov; Thibault Rieutord
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The paper proposes a surprisingly simple characterization of a large class of models of distributed computing, via an agreement function: for each set of processes, the function determines the best level of set consensus these processes can reach. We show that the task computability of a large class of fair adversaries that includes, in particular superset-closed and symmetric one, is precisely captured by agreement functions.
Topics: Distributed, Parallel, and Cluster Computing, Computing Research Repository
Source: http://arxiv.org/abs/1702.00361
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6.0
Jun 30, 2018
06/18
by
Martín Chalela; Elizabeth Johana Gonzalez; Diego Garcia Lambas; Gael Foëx
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We present a weak lensing analysis of a sample of SDSS Compact Groups (CGs). Using the measured radial density contrast profile, we derive the average masses under the assumption of spherical symmetry, obtaining a velocity dispersion for the Singular Isothermal Spherical model, $\sigma_V = 270 \pm 40 \rm ~km~s^{-1}$, and for the NFW model, $R_{200}=0.53\pm0.10\,h_{70}^{-1}\,\rm Mpc$. We test three different definitions of CGs centres to identify which best traces the true dark matter halo...
Topics: Astrophysics of Galaxies, Astrophysics, Cosmology and Nongalactic Astrophysics
Source: http://arxiv.org/abs/1702.00402
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3.0
Jun 30, 2018
06/18
by
A. Chirvasitu; S. Paul Smith
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The 4-dimensional Sklyanin algebras are a well-studied 2-parameter family of non-commutative graded algebras, often denoted A(E,tau), that depend on a quartic elliptic curve E in P^3 and a translation automorphism tau of E. They are graded algebras generated by four degree-one elements subject to six quadratic relations and in many important ways they behave like the polynomial ring on four indeterminates apart from the minor difference that they are not commutative. They are elliptic analogues...
Topics: Quantum Algebra, Mathematics
Source: http://arxiv.org/abs/1702.00377
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5.0
Jun 30, 2018
06/18
by
Nicolas Libedinsky; Geordie Williamson
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We study a diagrammatic categorification (the "anti-spherical category") of the anti-spherical module for any Coxeter group. We deduce that Deodhar's (sign) parabolic Kazhdan-Lusztig polynomials have non-negative coefficients, and that a monotonicity conjecture of Brenti's holds. The main technical observation is a localisation procedure for the anti-spherical category, from which we construct a "light leaves" basis of morphisms. Our techniques may be used to calculate many...
Topics: Combinatorics, Representation Theory, Mathematics
Source: http://arxiv.org/abs/1702.00459
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4.0
Jun 30, 2018
06/18
by
Willian Couto; Adalberto Fazzio; Roberto Miwa
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The electronic and the structural properties of two dimensional van der Waals metal/semiconductor heterostructures have been investigated through first-principles calculations. We have considered the recently synthesized borophene [Science {\bf 350}, 1513 (2015)], and the planar boron sheets (S1 and S2) [Nature Chemistry {\bf 8}, 563 (2016)] as the 2D metal layer, and the transition metal dichalcogenides (TMDCs) \mose, and \wse\ as the semiconductor monolayer. We find that the energetic...
Topics: Materials Science, Condensed Matter
Source: http://arxiv.org/abs/1702.00437
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5.0
Jun 30, 2018
06/18
by
Michela Mapelli
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Hydrodynamical simulations of turbulent molecular clouds show that star clusters form from the hierarchical merger of several sub-clumps. We run smoothed-particle hydrodynamics simulations of turbulence-supported molecular clouds with mass ranging from 1700 to 43000 Msun. We study the kinematic evolution of the main cluster that forms in each cloud. We find that the parent gas acquires significant rotation, because of large-scale torques during the process of hierarchical assembly. The stellar...
Topics: Astrophysics of Galaxies, Solar and Stellar Astrophysics, Astrophysics
Source: http://arxiv.org/abs/1702.00415
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3.0
Jun 30, 2018
06/18
by
Julia Fukuyama
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When working with large biological data sets, exploratory analysis is an important first step for understanding the latent structure and for generating hypotheses to be tested in subsequent analyses. However, when the number of variables is large compared to the number of samples, standard methods such as principal components analysis give results which are unstable and difficult to interpret. To mitigate these problems, we have developed a method which allows the analyst to incorporate side...
Topics: Statistics, Applications, Methodology
Source: http://arxiv.org/abs/1702.00501
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3.0
Jun 30, 2018
06/18
by
Seonho Kim; Namyoon Lee; Songnam Hong
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This paper investigates an uplink multiuser massive multiple-input multiple-output (MIMO) system with one-bit analog-to-digital converters (ADCs), in which $K$ users with a single-antenna communicate with one base station (BS) with $n_r$ antennas. In this system, we propose a novel MIMO detection framework, which is inspired by coding theory. The key idea of the proposed framework is to create a non-linear code $\Cc$ of length $n_r$ and rate $K/n_r$ using the encoding function that is...
Topics: Information Theory, Computing Research Repository, Mathematics
Source: http://arxiv.org/abs/1702.00524
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3.0
Jun 30, 2018
06/18
by
Ondřej Procházka; Ryan O. Milligan; Joel C. Allred; Adam F. Kowalski; Pavel Kotrč; Mihalis Mathioudakis
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We present unique NUV observations of a well-observed X-class flare from NOAA 12087 obtained at Ond\v{r}ejov Observatory. The flare shows a strong white-light continuum but no detectable emission in the higher Balmer and Lyman lines. RHESSI and Fermi observations indicate an extremely hard X-ray spectrum and gamma-ray emission. We use the RADYN radiative hydrodynamic code to perform two type of simulations. One where an energy of 3 x 10^11 erg/cm^2/s is deposited by an electron beam with a...
Topics: Solar and Stellar Astrophysics, Astrophysics
Source: http://arxiv.org/abs/1702.00638
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4.0
Jun 30, 2018
06/18
by
James E. Barrett; Andrew Feber; Javier Herrero; Miljana Tanic; Gareth Wilson; Charles Swanton; Stephan Beck
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Motivation: Epigenetic heterogeneity within a tumour can play an important role in tumour evolution and the emergence of resistance to treatment. It is increasingly recognised that the study of DNA methylation (DNAm) patterns along the genome -- so-called `epialleles' -- offers greater insight into epigenetic dynamics than conventional analyses which examine DNAm marks individually. Results: We have developed a Bayesian model to infer which epialleles are present in multiple regions of the same...
Topics: Quantitative Methods, Statistics Theory, Quantitative Biology, Genomics, Statistics, Mathematics
Source: http://arxiv.org/abs/1702.00633
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4.0
Jun 30, 2018
06/18
by
Árpád Baricz; Evrim Toklu; Ekrem Kadıoğlu
texts
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In this paper our aim is to find the radii of starlikeness and convexity of the normalized Wright functions for three different kind of normalization. The key tools in the proof of our main results are the Mittag-Leffler expansion for Wright function and properties of real zeros of Wright function and its derivative. In addition, by using the Euler-Rayleigh inequalities we obtain some tight lower and upper bounds for the radii of starlikeness and convexity of order zero for the normalized...
Topics: Classical Analysis and ODEs, Mathematics
Source: http://arxiv.org/abs/1702.00631
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4.0
Jun 30, 2018
06/18
by
T. Karthick; Suchismita Mishra
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A hereditary class $\mathcal{G}$ of graphs is $\chi$-bounded if there is a $\chi$-binding function, say $f$ such that $\chi(G) \leq f(\omega(G))$, for every $G \in \cal{G}$, where $\chi(G)$ ($\omega(G)$) denote the chromatic (clique) number of $G$. It is known that for every $2K_2$-free graph $G$, $\chi(G) \leq \binom{\omega(G)+1}{2}$, and the class of ($2K_2, 3K_1$)-free graphs does not admit a linear $\chi$-binding function. In this paper, we are interested in classes of $2K_2$-free graphs...
Topics: Mathematics, Computing Research Repository, Combinatorics, Discrete Mathematics
Source: http://arxiv.org/abs/1702.00622
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4.0
Jun 30, 2018
06/18
by
Jon Johnsen; Winfried Sickel
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The subject is traces of Sobolev spaces with mixed Lebesgue norms on Euclidean space. Specifically, restrictions to the hyperplanes given by the first and last coordinates are applied to functions belonging to quasi-homogeneous, mixed-norm Lizorkin--Triebel spaces; Sobolev spaces are obtained from these as special cases. Spaces admitting traces in the distribution sense are characterised except for the borderline cases; these are also covered in case of the first variable. With respect to the...
Topics: Analysis of PDEs, Mathematics
Source: http://arxiv.org/abs/1702.00712
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3.0
Jun 30, 2018
06/18
by
Erich A. Mielke; Eric C. Townsend; Marc D. Killpack
texts
eye 3
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During co-manipulation involving humans and robots, it is necessary to base robot controllers on human behaviors to achieve comfortable and coordinated movement between the human-robot dyad. In this paper, we describe an experiment between human-human dyads and we record the force and motion data as the leader-follower dyads moved in translation and rotation. The force/motion data was then analyzed for patterns found during lateral translation only. For extended objects, lateral translation and...
Topics: Computing Research Repository, Robotics
Source: http://arxiv.org/abs/1702.00733
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4.0
Jun 30, 2018
06/18
by
Virginia Agostiniani; Antonio DeSimone
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We present a rigorous derivation of dimensionally reduced theories for thin sheets of nematic elastomers, in the finite bending regime. Focusing on the case of twist nematic texture, we obtain 2D and 1D models for wide and narrow ribbons exhibiting spontaneous flexure and torsion. We also discuss some variants to the case of twist nematic texture, which lead to 2D models with different target curvature tensors. In particular, we analyse cases where the nematic texture leads to zero or positive...
Topics: Analysis of PDEs, Mathematics
Source: http://arxiv.org/abs/1702.00739
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4.0
Jun 30, 2018
06/18
by
Ahmad Adel Abutaleb
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In this paper, we find a reasonable explanation of high temperature superconductivity phenomena using Anyon statistics.
Topics: Physics, General Physics
Source: http://arxiv.org/abs/1702.00692
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4.0
Jun 30, 2018
06/18
by
Eric Amar; Pascal J. Thomas
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We use a special version of the Corona Theorem in several variables, valid when all but one of the data functions are smooth, to generalize to the polydisc results obtained by El Fallah, Kellay and Seip about cyclicity of non vanishing bounded holomorphic functions in large enough Banach spaces of analytic functions on the polydisc determined either by weighted sums of powers of Taylor coefficients or by radially weighted integrals of powers of the modulus of the function.
Topics: Complex Variables, Mathematics
Source: http://arxiv.org/abs/1702.00729
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5.0
Jun 30, 2018
06/18
by
Rajai Nasser
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A channel $W$ is said to be input-degraded from another channel $W'$ if $W$ can be simulated from $W'$ by randomization at the input. We provide a necessary and sufficient condition for a channel to be input-degraded from another one. We show that any decoder that is good for $W'$ is also good for $W$. We provide two characterizations for input-degradedness, one of which is similar to the Blackwell-Sherman-Stein theorem. We say that two channels are input-equivalent if they are input-degraded...
Topics: Information Theory, Computing Research Repository, Mathematics
Source: http://arxiv.org/abs/1702.00727
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3.0
Jun 30, 2018
06/18
by
J. R. Nelson; R. J. Needs; C. J. Pickard
texts
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We investigate the high-pressure behaviour of beryllium, magnesium and calcium difluorides using ab initio random structure searching and density functional theory (DFT) calculations, over the pressure range 0-70 GPa. Beryllium fluoride exhibits extensive polymorphism at low pressures, and we find two new phases for this compound - the silica moganite and CaCl2 structures - which are stable over the wide pressure range 12-57 GPa. For magnesium fluoride, our searching results show that the...
Topics: Materials Science, Condensed Matter
Source: http://arxiv.org/abs/1702.00746
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5.0
Jun 30, 2018
06/18
by
Wenguan Wang; Jianbing Shen; Ling Shao
texts
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This paper proposes a deep learning model to efficiently detect salient regions in videos. It addresses two important issues: (1) deep video saliency model training with the absence of sufficiently large and pixel-wise annotated video data; and (2) fast video saliency training and detection. The proposed deep video saliency network consists of two modules, for capturing the spatial and temporal saliency stimuli, respectively. The dynamic saliency model, explicitly incorporating saliency...
Topics: Computing Research Repository, Computer Vision and Pattern Recognition
Source: http://arxiv.org/abs/1702.00871
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7.0
Jun 30, 2018
06/18
by
Yaozhong Hu; David Nualart; Xiaoming Song
texts
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In this paper, we consider a class of backward doubly stochastic differential equations (BDSDE for short) with general terminal value and general random generator. Those BDSDEs do not involve any forward diffusion processes. By using the techniques of Malliavin calculus, we are able to establish the $L^p$-H\"{o}lder continuity of the solution pair. Then, an implicit numerical scheme for the BDSDE is proposed and the rate of convergence is obtained in the $L^p$-sense. As a by-product, we...
Topics: Probability, Mathematics
Source: http://arxiv.org/abs/1702.00910
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6.0
Jun 30, 2018
06/18
by
Yuhua Sun; Qiang Wang; Tongjiang Yan
texts
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In modern stream cipher, there are many algorithms, such as ZUC, LTE encryption algorithm and LTE integrity algorithm, using bit-component sequences of $p$-ary $m$-sequences as the input of the algorithm. Therefore, analyzing their statistical property (For example, autocorrelation, linear complexity and 2-adic complexity) of bit-component sequences of $p$-ary $m$-sequences is becoming an important research topic. In this paper, we first derive some autocorrelation properties of LSB (Least...
Topics: Information Theory, Computing Research Repository, Mathematics
Source: http://arxiv.org/abs/1702.00822
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6.0
Jun 30, 2018
06/18
by
Boštjan Brešar; Csilla Bujtás; Tanja Gologranc; Sandi Klavžar; Gašper Košmrlj; Balázs Patkós; Zsolt Tuza; Máté Vizer
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In a graph $G$ a sequence $v_1,v_2,\dots,v_m$ of vertices is Grundy dominating if for all $2\le i \le m$ we have $N[v_i]\not\subseteq \cup_{j=1}^{i-1}N[v_j]$ and is Grundy total dominating if for all $2\le i \le m$ we have $N(v_i)\not\subseteq \cup_{j=1}^{i-1}N(v_j)$. The length of the longest Grundy (total) dominating sequence has been studied by several authors. In this paper we introduce two similar concepts when the requirement on the neighborhoods is changed to $N(v_i)\not\subseteq...
Topics: Combinatorics, Mathematics
Source: http://arxiv.org/abs/1702.00828
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15
Jun 30, 2018
06/18
by
Will Sawin
texts
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We give upper bounds for triples of subsets of a finite group such that the triples of elements that multiply to 1 form a perfect matching. Our bounds are the first to give exponential savings in powers of an arbitrary finite group. Previously, Blasiak-Church-Cohn-Grochow-Naslund-Sawin-Umans gave similar bounds in abelian groups of bounded exponent, and Petrov gave exponential bounds in certain p-groups.
Topics: Combinatorics, Mathematics
Source: http://arxiv.org/abs/1702.00905
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4.0
Jun 30, 2018
06/18
by
Yoon Kim; Carl Denton; Luong Hoang; Alexander M. Rush
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Attention networks have proven to be an effective approach for embedding categorical inference within a deep neural network. However, for many tasks we may want to model richer structural dependencies without abandoning end-to-end training. In this work, we experiment with incorporating richer structural distributions, encoded using graphical models, within deep networks. We show that these structured attention networks are simple extensions of the basic attention procedure, and that they allow...
Topics: Learning, Neural and Evolutionary Computing, Computing Research Repository, Computation and Language
Source: http://arxiv.org/abs/1702.00887
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4.0
Jun 30, 2018
06/18
by
Carlos Beltrán; Nuria Corral; Juan G. Criado del Rey
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In this article we study the role of the Green function for the Laplacian in a compact Riemannian manifold as a tool for obtaining well-distributed points. In particular, we prove that a sequence of minimizers for the Green energy is asymptotically uniformly distributed. We pay special attention to the case of locally harmonic manifolds.
Topics: Metric Geometry, Differential Geometry, Mathematics
Source: http://arxiv.org/abs/1702.00864
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7.0
Jun 30, 2018
06/18
by
Gregor N. Simm; Jonny Proppe; Markus Reiher
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Computational models in chemistry rely on a number of approximations. The effect of such approximations on observables derived from them is often unpredictable. Therefore, it is challenging to quantify the uncertainty of a computational result, which, however, is necessary to assess the suitability of a computational model. Common performance statistics such as the mean absolute error are prone to failure as they do not distinguish the explainable (systematic) part of the errors from their...
Topics: Physics, Data Analysis, Statistics and Probability, Computational Physics, Chemical Physics
Source: http://arxiv.org/abs/1702.00867
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5.0
Jun 30, 2018
06/18
by
Wen-Juan Liu; Lei Qian; Xiao-Bo Dong; Ning Jiang; Paulina Lira; Zheng Cai; Feige Wang; Jinyi Yang; Ting Xiao; Minjin Kim
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We report the discovery of a 20-kpc-sized H{\alpha} emission in SDSS J083803.68+540642.0, a ringed dwarf galaxy (M$_V$ = -17.89 mag) hosting an accreting intermediate-mass black hole at z=0.02957. Analysis of the HST images indicates that it is an early-type galaxy with a featureless low-surface brightness disk ({\mu}0 = 20.39 mag arcsec$^{-2}$ in the V band) and a prominent, relatively red bulge (V - I = 2.03, Re = 0.28 kpc or 0."48) that accounts for ~81% of the total light in the I...
Topics: Astrophysics of Galaxies, Astrophysics
Source: http://arxiv.org/abs/1702.01033
3
3.0
Jun 30, 2018
06/18
by
Anna Martin; Franco Bradamante; Vincenzo Barone
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We show how some parton distribution functions related to the transverse spin of nucleons can be extracted point by point from combinations of proton and deuteron observables. In particular, we present a determination of the valence and sea Sivers functions from the single-spin asymmetries measured by COMPASS.
Topic: High Energy Physics - Phenomenology
Source: http://arxiv.org/abs/1702.01038
4
4.0
Jun 30, 2018
06/18
by
Wen Lu; Xiaonan Ma; George Marinescu
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eye 4
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It is known that a compact symplectic manifold endowed with a prequantum line bundle can be embedded in the projective space generated by the eigensections of low energy of the Bochner Laplacian acting on high $p$-tensor powers of the prequantum line bundle. We show that the Fubini-Study metrics induced by these embeddings converge at speed rate $1/p^{2}$ to the symplectic form.
Topics: Differential Geometry, Mathematics
Source: http://arxiv.org/abs/1702.00974
4
4.0
Jun 30, 2018
06/18
by
Leandro Arosio; Erlend Fornaess Wold
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eye 4
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We embed compact $C^\infty$ manifolds into $\mathbb C^n$ as totally real manifolds with prescribed polynomial hulls. As a consequence we show that any compact $C^\infty$ manifold of dimension $d$ admits a totally real embedding into $\mathbb C^{\lfloor \frac{3d}{2}\rfloor}$ with non-trivial polynomial hull without complex structure.
Topics: Complex Variables, Mathematics
Source: http://arxiv.org/abs/1702.01002
4
4.0
Jun 30, 2018
06/18
by
Bobo Hua
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eye 4
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comment 0
In a general setting, we prove that any bounded harmonic function on a graph satisfying the curvature dimension condition CD(0, \infty) is constant.
Topics: Mathematics, Probability, Combinatorics, Functional Analysis, Metric Geometry
Source: http://arxiv.org/abs/1702.00961
4
4.0
Jun 30, 2018
06/18
by
Mesut Günes
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eye 4
favorite 1
comment 0
Large-scale wireless testbeds have been setup in the last years with the goal to study wireless multi-hop networks in more realistic environments. Since the setup and operation of such a testbed is expensive in terms of money, time, and labor, the crucial question rises whether this effort is justified with the scientific results the testbed generates. In this paper, we give an answer to this question based on our experience with the DES-Testbed, a large-scale wireless sensor network and...
Topics: Networking and Internet Architecture, Computing Research Repository
Source: http://arxiv.org/abs/1702.01052
4
4.0
Jun 30, 2018
06/18
by
Naveen Kadayinti; Dinesh Sharma
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eye 4
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A decision feedback circuit with integrated offset compensation is presented in this paper. The circuit is built around the sense amplifier comparator. The feedback loop is closed around the first stage of the comparator resulting in minimum loop latency. The feedback loop is implemented using a switched capacitor network that picks from one of pre-computed voltages to be fed back. The comparator's offset that is to be compensated for, is added in the same path. Hence, an extra offset...
Topics: Hardware Architecture, Computing Research Repository
Source: http://arxiv.org/abs/1702.01067
3
3.0
Jun 30, 2018
06/18
by
Debleena Thacker; Stanislav Volkov
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Start with a graph with a subset of vertices called {\it the border}. A particle released from the origin performs a random walk on the graph until it comes to the immediate neighbourhood of the border, at which point it joins this subset thus increasing the border by one point. Then a new particle is released from the origin and the process repeats until the origin becomes a part of the border itself. We are interested in the total number $\xi$ of particles to be released by this final moment....
Topics: Probability, Mathematics
Source: http://arxiv.org/abs/1702.01077
4
4.0
Jun 30, 2018
06/18
by
Vanda Farsad; Azat M. Gainutdinov; Ingo Runkel
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We study the universal Hopf algebra L of Majid and Lyubashenko in the case that the underlying ribbon category is the category of representations of a finite dimensional ribbon quasi-Hopf algebra A. We show that L=A* with coadjoint action and compute the Hopf algebra structure morphisms of L in terms of the defining data of A. We give explicitly the condition on A which makes Rep(A) factorisable and compute Lyubashenko's projective SL(2,Z)-action on the centre of A in this case. The point of...
Topics: Quantum Algebra, High Energy Physics - Theory, Mathematics
Source: http://arxiv.org/abs/1702.01086
3
3.0
Jun 30, 2018
06/18
by
Eyasu Zemene; Yonatan Tariku; Haroon Idrees; Andrea Prati; Marcello Pelillo; Mubarak Shah
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eye 3
favorite 0
comment 0
This paper presents a new approach for the challenging problem of geo-locating an image using image matching in a structured database of city-wide reference images with known GPS coordinates. We cast the geo-localization as a clustering problem on local image features. Akin to existing approaches on the problem, our framework builds on low-level features which allow partial matching between images. For each local feature in the query image, we find its approximate nearest neighbors in the...
Topics: Computing Research Repository, Computer Vision and Pattern Recognition
Source: http://arxiv.org/abs/1702.01238
3
3.0
Jun 30, 2018
06/18
by
Guoli Ding
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eye 3
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The purpose of this paper is to characterize graphs that do not have a large $K_{2,n}$-minor. As corollaries, it is proved that, for any given positive integer $n$, every sufficiently large 3-connected graph with minimum degree at least six, every 4-connected graph with a vertex of sufficiently high degree, and every sufficiently large 5-connected graph must have a $K_{2,n}$-minor.
Topics: Combinatorics, Mathematics
Source: http://arxiv.org/abs/1702.01355
4
4.0
Jun 30, 2018
06/18
by
Shuai Yuan; Qin Huang; Zulin Wang
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eye 4
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This paper generalizes the piggybacking constructions for distributed storage systems by considering various protected instances and piggybacked instances. Analysis demonstrates that the proportion of protected instances determines the average repair bandwidth for a systematic node. By optimizing the proportion of protected instances, the repair ratio of generalized piggybacking codes approaches zero instead of 50% as the number of parity check nodes tends to infinity. Furthermore, the...
Topics: Information Theory, Computing Research Repository, Mathematics
Source: http://arxiv.org/abs/1702.01241
4
4.0
Jun 30, 2018
06/18
by
Pascal Ochem
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eye 4
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comment 0
A $k$-subcoloring of a graph is a partition of the vertex set into at most $k$ cluster graphs, that is, graphs with no induced $P_3$. 2-subcoloring is known to be NP-complete for comparability graphs and three subclasses of planar graphs, namely triangle-free planar graphs with maximum degree 4, planar perfect graphs with maximum degree 4, and planar graphs with girth 5. We show that 2-subcoloring is also NP-complete for planar comparability graphs with maximum degree 4.
Topics: Computing Research Repository, Discrete Mathematics
Source: http://arxiv.org/abs/1702.01283
7
7.0
Jun 30, 2018
06/18
by
Milan Janjić
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eye 7
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We define a quantity $c_m(n,k)$ as a generalization of the notion of the composition of the positive integer $n$ into $k$ parts. We proceed to derive some known properties of this quantity. In particular, we relate two partial Bell polynomials, in which the sequence of the variables of one polynomial is the invert transform of the sequence of the variables of the other. We connect the quantities $c_m(n,k)$ and $c_{m-1}(n,k)$ via Pascal matrices. We then relate $c_m(n,k)$ with the numbers of...
Topics: Combinatorics, Mathematics
Source: http://arxiv.org/abs/1702.01273
5
5.0
Jun 30, 2018
06/18
by
Fumitaka Nakamura; Kazuhito Dobashi; Tomomi Shimoikura; Tomohiro Tanaka; Toshikazu Onishi
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We present results of wide-field $^{12}$CO ($J = 2 - 1$) and $^{13}$CO ($J = 2 - 1$) observations toward the Aquila Rift and Serpens molecular cloud complexes (25$^\circ < l < 33^\circ$ and $1^\circ < b < 6^\circ$) at an angular resolution of 3$'$.4 ($\approx$ 0.25 pc) and at a velocity resolution of 0.079 km s$^{-1}$ with the velocity coverage of $-5$ km s$^{-1} < V_{\rm LSR}
Topics: Astrophysics of Galaxies, Solar and Stellar Astrophysics, Astrophysics
Source: http://arxiv.org/abs/1702.01501
3
3.0
Jun 30, 2018
06/18
by
Riccardo Rastelli; Pierre Latouche; Nial Friel
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eye 3
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comment 0
Latent stochastic block models are flexible statistical models that are widely used in social network analysis. In recent years, efforts have been made to extend these models to temporal dynamic networks, whereby the connections between nodes are observed at a number of different times. In this paper we extend the original stochastic block model by using a Markovian property to describe the evolution of nodes' cluster memberships over time. We recast the problem of clustering the nodes of the...
Topics: Computation, Statistics, Methodology
Source: http://arxiv.org/abs/1702.01418
4
4.0
Jun 30, 2018
06/18
by
Guo-Hua Liang; Yong-Long Wang; Hua Jiang; Meng-Yun Lai; Hong-Shi Zong
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eye 4
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The spin-dependent electron transmission through a helical membrane with account of linear spin-orbit interaction has been investigated by numerically solving the Schr\"odinger equation in cylindrical coordinates . It is shown that the spin precession is affected by the magnitude of geometric parameters and chirality of the membrane. This effect is also explained analytically by using the perturbation theory in the weak coupling regime. In the strong coupling regime, the current spin...
Topics: Mesoscale and Nanoscale Physics, Condensed Matter, Quantum Physics
Source: http://arxiv.org/abs/1702.01375
4
4.0
Jun 30, 2018
06/18
by
Vitor Balestro; Horst Martini; Emad Shonoda
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eye 4
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comment 0
The theory of classical types of curves in normed planes is not strongly developed. In particular, the knowledge on existing concepts of curvatures of planar curves is widespread and not systematized in the literature. Giving a comprehensive overview on geometric properties of and relations between all introduced curvature concepts, we try to fill this gap. Certainly, this yields a basis for further research and also for possible extensions of the whole existing framework. In addition, we...
Topics: Differential Geometry, Mathematics
Source: http://arxiv.org/abs/1702.01449
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6.0
Jun 30, 2018
06/18
by
Anastasios D. Delis; Eleftherios N. Nikolidakis
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eye 6
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comment 0
We compute the Bellman function of three integral variables associated to the dyadic maximal operator on a subset of its domain. Additionally, we provide an upper bound for the whole domain of its definition.
Topics: Functional Analysis, Mathematics
Source: http://arxiv.org/abs/1702.01419
3
3.0
Jun 30, 2018
06/18
by
Maarten V. de Hoop; Josselin Garnier; Knut Solna
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eye 3
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comment 0
We present an analysis of acoustic daylight imaging in an Earth-like model assuming a random distribution of noise sources spatially supported in an annulus located away from the surface. We assume a situation with scalar wave propagation and that the measurements are of the wave field at the surface. Then, we obtain a relation between the autocorrelation function of the measurements and the trace of the scattered field generated by an impulsive source localized just below the surface. From...
Topics: Analysis of PDEs, Mathematics
Source: http://arxiv.org/abs/1702.01384
6
6.0
Jun 30, 2018
06/18
by
Jinsoo Choi; Tae-Hyun Oh; In So Kweon
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eye 6
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comment 0
The best summary of a long video differs among different people due to its highly subjective nature. Even for the same person, the best summary may change with time or mood. In this paper, we introduce the task of generating customized video summaries through simple text. First, we train a deep architecture to effectively learn semantic embeddings of video frames by leveraging the abundance of image-caption data via a progressive and residual manner. Given a user-specific text description, our...
Topics: Multimedia, Computing Research Repository, Computer Vision and Pattern Recognition
Source: http://arxiv.org/abs/1702.01528
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7.0
Jun 30, 2018
06/18
by
Shaohua Li; Tat-Seng Chua
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eye 7
favorite 0
comment 0
Traditionally a document is visualized by a word cloud. Recently, distributed representation methods for documents have been developed, which map a document to a set of topic embeddings. Visualizing such a representation is useful to present the semantics of a document in higher granularity; it is also challenging, as there are multiple topics, each containing multiple words. We propose to visualize a set of topics using Topic Cloud, which is a pie chart consisting of topic slices, where each...
Topics: Information Retrieval, Computing Research Repository
Source: http://arxiv.org/abs/1702.01520
6
6.0
Jun 30, 2018
06/18
by
N. Dimakis; Alex Giacomini; Sameerah Jamal; Genly Leon; Andronikos Paliathanasis
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eye 6
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A class of generalized Galileon cosmological models, which can be described by a point-like Lagrangian, is considered in order to utilize Noether's Theorem to determine conservation laws for the field equations. In the Friedmann-Lema\^itre-Robertson-Walker universe, the existence of a nontrivial conservation law indicates the integrability of the field equations. Due to the complexity of the latter, we apply the differential invariants approach in order to construct special power-law solutions...
Topics: General Relativity and Quantum Cosmology, Mathematical Physics, Astrophysics, Cosmology and...
Source: http://arxiv.org/abs/1702.01603
6
6.0
Jun 30, 2018
06/18
by
Zhongqing Wang; Yue Zhang
texts
eye 6
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comment 0
We present opinion recommendation, a novel task of jointly predicting a custom review with a rating score that a certain user would give to a certain product or service, given existing reviews and rating scores to the product or service by other users, and the reviews that the user has given to other products and services. A characteristic of opinion recommendation is the reliance of multiple data sources for multi-task joint learning, which is the strength of neural models. We use a single...
Topics: Computing Research Repository, Computation and Language
Source: http://arxiv.org/abs/1702.01517
3
3.0
Jun 30, 2018
06/18
by
Constantin Udrişte; Ionel Ţevy; Elena-Laura Otobîcu
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eye 3
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Our original results are associated to a multitime hybrid game, with two equips of players, based on a multiple integral functional and an m- ow as constraint. The aim of this paper is three-fold: (i) to define the multitime lower or upper value function; (ii) to build Divergence type PDEs ; (iii) to give viscosity solutions of previous PDEs.
Topics: Analysis of PDEs, Mathematics
Source: http://arxiv.org/abs/1702.01559
3
3.0
Jun 30, 2018
06/18
by
J. Kleimann; C. Röken; H. Fichtner
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eye 3
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A previously published analytical magnetohydrodynamic model for the local interstellar magnetic field in the vicinity of the heliopause (R\"oken et al. 2015) is extended from incompressible to compressible, yet predominantly subsonic flow, considering both isothermal and adiabatic equations of state. Exact expressions and suitable approximations for the density and the flow velocity are derived and discussed. In addition to the stationary induction equation, these expressions also satisfy...
Topics: Astrophysics of Galaxies, Solar and Stellar Astrophysics, Astrophysics
Source: http://arxiv.org/abs/1702.01619
3
3.0
Jun 30, 2018
06/18
by
Constantin Udrişte; Elena-Laura Otobîcu; Ionel Ţevy
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eye 3
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comment 0
Multitime differential games are related to the modeling and analysis of cooperation or conflict in the context of a multitime dynamical systems. Their theory involves either a curvilinear integral functional or a multiple integral functional and an $m$-flow as constraint. The aim of this paper is to give original results regarding multitime hybrid differential games with curvilinear integral functional constrained by an $m$-flow: fundamental properties of multitime upper and lower values,...
Topics: Optimization and Control, Mathematics
Source: http://arxiv.org/abs/1702.01554
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9.0
Jun 30, 2018
06/18
by
Horacio López-Menéndez; José Félix Rodríguez
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eye 9
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comment 0
The rheology of F-actin networks has attracted a great attention during the last years. In order to gain a complete understanding of the rheological properties of these novel materials, it is necessary the study in a large deformations regime to alter their internal structure. In this sense, Schmoller et al. 2010 showed that the reconstituted networks of F-actin crosslinked with $\alpha$-actinin unexpectedly harden when they are subjected to a cyclical shear. This observation contradicts the...
Topics: Condensed Matter, Soft Condensed Matter
Source: http://arxiv.org/abs/1702.01595
3
3.0
Jun 30, 2018
06/18
by
Abdollah Jalilian; Yongtao Guan; Rasmus Waagepetersen
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eye 3
favorite 0
comment 0
The pair correlation function is a fundamental spatial point process characteristic that, given the intensity function, determines second order moments of the point process. Non-parametric estimation of the pair correlation function is a typical initial step of a statistical analysis of a spatial point pattern. Kernel estimators are popular but especially for clustered point patterns suffer from bias for small spatial lags. In this paper we introduce a new orthogonal series estimator. The new...
Topics: Statistics Theory, Statistics, Mathematics
Source: http://arxiv.org/abs/1702.01736
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10.0
Jun 30, 2018
06/18
by
Daniel Munoz-Alvarez; Lang Tong
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eye 10
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comment 0
This two-part paper addresses the design of retail electricity tariffs for distribution systems with distributed energy resources such as solar power and storage. In particular, the optimal design of dynamic two-part tariffs for a regulated monopolistic retailer is considered, where the retailer faces exogenous wholesale electricity prices and fixed costs on the one hand and stochastic demands with inter-temporal price dependencies on the other. Part I presents a general framework and analysis...
Topics: Probability, Optimization and Control, Mathematics
Source: http://arxiv.org/abs/1702.01792
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6.0
Jun 30, 2018
06/18
by
Jordi Isern; Enrique García-Berro; Baybars Külebi; Pablo Lorén-Aguilar
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eye 6
favorite 0
comment 0
Isolated magnetic white dwarfs have field strengths ranging from kilogauss to gigagauss. However, the origin of the magnetic field has not been hitherto elucidated. Whether these fields are fossil, hence the remnants of original weak magnetic fields amplified during the course of the evolution of their progenitor stars, or are the result of binary interactions or, finally, they are produced by other internal physical mechanisms during the cooling of the white dwarf itself, remains a mystery. At...
Topics: Solar and Stellar Astrophysics, Astrophysics, Earth and Planetary Astrophysics
Source: http://arxiv.org/abs/1702.01813
3
3.0
Jun 30, 2018
06/18
by
R. M. Woloshyn
texts
eye 3
favorite 0
comment 0
The abelian Higgs model is studied on the lattice with charge conjugate boundary conditions. A locally gauge invariant operator for the charged scalar field is constructed and the charged scalar particle mass is calculated in the Coulomb phase of the lattice model. Agreement is found with the mass calculated in Coulomb gauge. The gauge invariant scalar field operator is used to calculate the Higgs boson mass in the Higgs region and to show that the charged particle disappears from the spectrum...
Topic: High Energy Physics - Lattice
Source: http://arxiv.org/abs/1702.01693
3
3.0
Jun 30, 2018
06/18
by
Eric Bonnetier; Charles Dapogny; Faouzi Triki
texts
eye 3
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comment 0
In this article, we investigate the spectrum of the Neumann-Poincar\'e operator associated to a periodic distribution of small inclusions with size $\varepsilon$, and its asymptotic behavior as the parameter $\varepsilon$ vanishes. Combining techniques pertaining to the fields of homogenization and potential theory, we prove that the limit spectrum is composed of the `trivial' eigenvalues $0$ and $1$, and of a subset which stays bounded away from $0$ and $1$ uniformly with respect to...
Topics: Analysis of PDEs, Mathematics
Source: http://arxiv.org/abs/1702.01798
4
4.0
Jun 30, 2018
06/18
by
Laurent Michel
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eye 4
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comment 0
We study the eigenvalues of the semiclassical Witten Laplacian $\Delta_\phi$ associated to a potential $\phi$. We consider the case where the sequence of Arrhenius numbers $S_1\leq \ldots\leq S_n$ associated to $\phi$ is degenerated, that is the preceding inequality are not necessarily strict.
Topics: Analysis of PDEs, Mathematics
Source: http://arxiv.org/abs/1702.01837
5
5.0
Jun 30, 2018
06/18
by
Marjan Ghazvininejad; Chris Brockett; Ming-Wei Chang; Bill Dolan; Jianfeng Gao; Wen-tau Yih; Michel Galley
texts
eye 5
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comment 0
Neural network models are capable of generating extremely natural sounding conversational interactions. Nevertheless, these models have yet to demonstrate that they can incorporate content in the form of factual information or entity-grounded opinion that would enable them to serve in more task-oriented conversational applications. This paper presents a novel, fully data-driven, and knowledge-grounded neural conversation model aimed at producing more contentful responses without slot filling....
Topics: Computing Research Repository, Computation and Language
Source: http://arxiv.org/abs/1702.01932
5
5.0
Jun 30, 2018
06/18
by
Marko Korhonen; Mikael Mohtaschemi; Antti Puisto; Xavier Illa; Mikko J. Alava
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eye 5
favorite 0
comment 0
For quite some time non-monotonic flow curve was thought to be a requirement for shear banded flows in complex fluids. Thus, in simple yield stress fluids shear banding was considered to be absent. Recent spatially resolved rheological experiments have found simple yield stress fluids to exhibit shear banded flow profiles. One proposed mechanism for the initiation of such transient shear banding process has been a small stress heterogeneity rising from the experimental device geometry. Here,...
Topics: Materials Science, Condensed Matter, Soft Condensed Matter
Source: http://arxiv.org/abs/1702.01896
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7.0
Jun 30, 2018
06/18
by
Francesca Di Patti; Duccio Fanelli; Filippo Miele; Timoteo Carletti
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eye 7
favorite 0
comment 0
A normal form approximation for the evolution of a reaction-diffusion system hosted on a directed graph is derived, in the vicinity of a supercritical Hopf bifurcation. Weak diffusive couplings are assumed to hold between adjacent nodes. Under this working assumption, a Complex Ginzburg-Landau equation (CGLE) is obtained, whose coefficients depend on the parameters of the model and the topological characteristics of the underlying network. The CGLE enables one to probe the stability of the...
Topics: Pattern Formation and Solitons, Statistical Mechanics, Condensed Matter, Nonlinear Sciences
Source: http://arxiv.org/abs/1702.01952
4
4.0
Jun 30, 2018
06/18
by
Eduardo Valenzuela-Domínguez; Johannes T. N. Krebs; Jürgen E. Franke
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eye 4
favorite 0
comment 0
In this article we present a Bernstein inequality for sums of random variables which are defined on a spatial lattice structure. The inequality can be used to derive concentration inequalities. It can be useful to obtain consistency properties for nonparametric estimators of conditional expectation functions.
Topics: Probability, Statistics Theory, Statistics, Mathematics
Source: http://arxiv.org/abs/1702.02023
4
4.0
Jun 30, 2018
06/18
by
Christian Baer
texts
eye 4
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comment 0
We study the spectral properties of curl, a linear differential operator of first order acting on differential forms of appropriate degree on an odd-dimensional closed oriented Riemannian manifold. In three dimensions its eigenvalues are the electromagnetic oscillation frequencies in vacuum without external sources. In general, the spectrum consists of the eigenvalue 0 with infinite multiplicity and further real discrete eigenvalues of finite multiplicity. We compute the Weyl asymptotics and...
Topics: Spectral Theory, Differential Geometry, Mathematics
Source: http://arxiv.org/abs/1702.02044
4
4.0
Jun 30, 2018
06/18
by
Z. H. Zhang; D. Homeier; D. J. Pinfield; N. Lodieu; H. R. A. Jones; F. Allard; Ya. V. Pavlenko
texts
eye 4
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comment 0
SDSS J010448.46+153501.8 has previously been classified as an sdM9.5 subdwarf. However, its very blue $J-K$ colour ($-0.15 \pm 0.17$) suggests a much lower metallicity compared to normal sdM9.5 subdwarfs. Here, we re-classify this object as a usdL1.5 subdwarf based on a new optical and near-infrared spectrum obtained with X-shooter on the Very Large Telescope. Spectral fitting with BT-Settl models leads to $T_{\rm eff}$ = 2450 $\pm$ 150 K, [Fe/H] = $-$2.4 $\pm$ 0.2 and log $g$ = 5.5 $\pm$ 0.25....
Topics: Solar and Stellar Astrophysics, Astrophysics
Source: http://arxiv.org/abs/1702.02001
3
3.0
Jun 30, 2018
06/18
by
Zhi-Hong Guan; Chao-Yang Chen; Gang Feng; Tao Li
texts
eye 3
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comment 0
This paper studies optimal tracking performance issues for multi-input-multi-output linear time-invariant systems under networked control with limited bandwidth and additive colored white Gaussian noise channel. The tracking performance is measured by control input energy and the energy of the error signal between the output of the system and the reference signal with respect to a Brownian motion random process. This paper focuses on two kinds of network parameters, the basic network...
Topics: Systems and Control, Computing Research Repository
Source: http://arxiv.org/abs/1702.02096
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5.0
Jun 30, 2018
06/18
by
Rogerio Deienno; Alessandro Morbidelli; Rodney S. Gomes; David Nesvorny
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eye 5
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comment 0
Recent works on planetary migration show that the orbital structure of the Kuiper belt can be very well reproduced if before the onset of the planetary instability Neptune underwent a long-range planetesimal-driven migration up to $\sim$28 au. However, considering that all giant planets should have been captured in mean motion resonances among themselves during the gas-disk phase, it is not clear whether such a very specific evolution for Neptune is possible, nor whether the instability could...
Topics: Astrophysics, Earth and Planetary Astrophysics
Source: http://arxiv.org/abs/1702.02094
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7.0
Jun 30, 2018
06/18
by
Alex Eskin; Simion Filip; Alex Wright
texts
eye 7
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comment 0
We compute the algebraic hull of the Kontsevich-Zorich cocycle over any GL^+_2(R) invariant subvariety of the Hodge bundle, and derive from this finiteness results on such subvarieties.
Topics: Algebraic Geometry, Dynamical Systems, Geometric Topology, Mathematics
Source: http://arxiv.org/abs/1702.02074
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5.0
Jun 30, 2018
06/18
by
Abhijit Banerjee; Bikash Chakraborty
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eye 5
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comment 0
This paper is devoted to the uniqueness problem of the power of a meromorphic function with its differential polynomial sharing a set. Our result will extend a number of results obtained in the theory of normal families. Some questions are posed for future research.
Topics: Complex Variables, Mathematics
Source: http://arxiv.org/abs/1702.02037
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6.0
Jun 30, 2018
06/18
by
Ngoc Thanh Thuy Tran; Shih-Yang Lin; Chiun-Yan Lin; Ming-Fa Lin
texts
eye 6
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comment 0
This work presents a systematic review of the feature-rich essential properties in graphene-related systems using the first-principles method. The geometric and electronic properties are greatly diversified by the number of layers, the stacking configurations, the sliding-created configuration transformation, the rippled structures, and the distinct adatom adsorptions. The top-site adsorptions can induce the significantly buckled structures, especially for hydrogen and fluorine adatoms. The...
Topics: Physics, Mesoscale and Nanoscale Physics, Condensed Matter, Chemical Physics
Source: http://arxiv.org/abs/1702.02031
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4.0
Jun 30, 2018
06/18
by
M. D. Hutchings; Jared B. Hertzberg; Yebin Liu; Nicholas T. Bronn; George A. Keefe; Jerry M. Chow; B. L. T. Plourde
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We have studied the impact of low-frequency magnetic flux noise upon superconducting transmon qubits with various levels of tunability. We find that qubits with weaker tunability exhibit dephasing that is less sensitive to flux noise. This insight was used to fabricate qubits where dephasing due to flux noise was suppressed below other dephasing sources, leading to flux-independent dephasing times T2* ~ 15 us over a tunable range of ~340 MHz. Such tunable qubits have the potential to create...
Topics: Condensed Matter, Superconductivity, Quantum Physics
Source: http://arxiv.org/abs/1702.02253
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4.0
Jun 30, 2018
06/18
by
Nandan Roy; Narayan Banerjee
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The stability criteria for the generalized Brans-Dicke cosmology in a spatially flat, homogeneous and isotropic cosmological model is discussed in the presence of a perfect fluid. The generalization comes through the channel that the Brans-Dicke coupling parameter $\omega$ is allowed to be a function of the scalar field $\phi$. This generalization can lead to a host of scalar-tensor theories of gravity for various choices of $\omega = \omega (\phi)$. A very interesting general result has been...
Topic: General Relativity and Quantum Cosmology
Source: http://arxiv.org/abs/1702.02169
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3.0
Jun 30, 2018
06/18
by
Toni Engelhardt; Robert Jedicke; Peter Veres; Alan Fitzsimmons; Larry Denneau; Ed Beshore; Bonnie Meinke
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We derived 90% confidence limits (CL) on the interstellar number density ($\rho_{IS}^{CL}$) of interstellar objects (ISO; comets and asteroids) as a function of the slope of their size-frequency distribution and limiting absolute magnitude. To account for gravitational focusing, we first generated a quasi-realistic ISO population to ~750 au from the Sun and propagated it forward in time to generate a steady state population of ISOs with heliocentric distance
Topics: Astrophysics, Earth and Planetary Astrophysics
Source: http://arxiv.org/abs/1702.02237
4
4.0
Jun 30, 2018
06/18
by
A. A. Bytsenko; M. Chaichian
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We show that multipartite generation functions can be written in terms of the Bell polynomials (known as Fa\`a di Bruno's formula) and the Ruelle spectral functions, whose spectrum is encoded in the Patterson-Selberg function of the hyperbolic three-geometry. We derive an infinite-product formula for the Chern-Simons partition functions and analyze appropriate q-series which leads to the construction of knot invariants. With the help of the Ruelle spectral functions symmetric and modular...
Topics: High Energy Physics - Theory, Mathematical Physics, Mathematics
Source: http://arxiv.org/abs/1702.02208
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Jun 30, 2018
06/18
by
Pramod Bharadwaj Chandrashekar; Arjun Magge; Abeed Sarker; Graciela Gonzalez
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Widespread use of social media has led to the generation of substantial amounts of information about individuals, including health-related information. Social media provides the opportunity to study health-related information about selected population groups who may be of interest for a particular study. In this paper, we explore the possibility of utilizing social media to perform targeted data collection and analysis from a particular population group -- pregnant women. We hypothesize that we...
Topics: Computing Research Repository, Computation and Language
Source: http://arxiv.org/abs/1702.02261
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6.0
Jun 30, 2018
06/18
by
Glaucia Dierings; Pavel Shumyatsky
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In 1954 B. H. Neumann discovered that if G is a group in which all conjugacy classes are finite with bounded size, then the derived group G' is finite. Later (in 1957) Wiegold found an explicit bound for the order of G'. We study groups in which the conjugacy classes containing commutators are finite with bounded size. We obtain the following results. Let G be a group and n a positive integer. If |x^G|
Topics: Group Theory, Mathematics
Source: http://arxiv.org/abs/1702.02224
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4.0
Jun 30, 2018
06/18
by
Peter Schuck; Yasuro Funaki; Hisashi Horiuchi; Gerd Roepke; Akihiro Tohsaki; Taiichi Yamada
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In this article we review the present status of alpha clustering in nuclear systems. First of all, an important aspect is condensation in nuclear matter. Second, the alpha container model, recently been proposed by Tohsaki-Horiuchi-Schuck-Roepke (THSR), will be outlined and the ensuing condensate aspect of the Hoyle state at 7.65 MeV in 12C will be investigated in some detail. After 15 years since the proposal of the alpha condensation concept a critical assessment of this idea will be given....
Topic: Nuclear Theory
Source: http://arxiv.org/abs/1702.02191
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6.0
Jun 30, 2018
06/18
by
Oleg Kiselyov
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Getting polymorphism and effects such as mutation to live together in the same language is a tale worth telling, under the recurring refrain of copying vs. sharing. We add new stanzas to the tale, about the ordeal to generate code with polymorphism and effects, and be sure it type-checks. Generating well-typed-by-construction polymorphic let-expressions is impossible in the Hindley-Milner type system: even the author believed that. The polymorphic-let generator turns out to exist. We present...
Topics: Logic in Computer Science, Programming Languages, Computing Research Repository
Source: http://arxiv.org/abs/1702.02280
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4.0
Jun 30, 2018
06/18
by
Daniyal Ahmed; Jalaluddin Qureshi
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In this poster paper we present a data dissemination transmission abstraction for over the air programming (OAP) protocol which is fundamentally different from the previous hop by hop transmission protocols. Instead of imposing the greedy requirement that at least one node in the ith hop receives all packets before transmitting packets to the next hop and its neighbours, we take advantage of the spatial diversity and broadcast nature of wireless transmission to adopt a cooperative approach in...
Topics: Networking and Internet Architecture, Computing Research Repository
Source: http://arxiv.org/abs/1702.02364
