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20082026
most citedSmoothing parameter and model selection for general smooth models

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31 papers · 1 filter

gr-qc2014★ 30 cited

Are Black Holes Springy?

Michael R. R. Good, Yen Chin Ong

A -dimensional asymptotically flat Kerr black hole angular speed can be used to define an effective spring constant, . Its maximum value is the Schwarzschild…

math.CV2014

Bernstein-Walsh inequalities in higher dimensions over exponential curves

Shirali Kadyrov, Mark Lawrence

Let be linearly independent over , set We prove sharp estimates for…

hep-ph2014★ 77 cited

Stimulated photon emission from the vacuum

Felix Karbstein, Rashid Shaisultanov

We study the effect of stimulated photon emission from the vacuum in strong space-time-dependent electromagnetic fields. We emphasize the viewpoint that the vacuum subjected to mac…

cs.CV2014★ 6 cited

Sparse distributed localized gradient fused features of objects

Swathikiran Sudhakarana, Alex Pappachen James

The sparse, hierarchical, and modular processing of natural signals is related to the ability of humans to recognize objects with high accuracy. In this study, we report a sparse f…

cs.ET2014★ 35 cited

Threshold Logic Computing: Memristive-CMOS Circuits for Fast Fourier Transform and Vedic Multiplication

Alex Pappachen James, Dinesh S. Kumar, Arun Ajayan

Brain inspired circuits can provide an alternative solution to implement computing architectures taking advantage of fault tolerance and generalisation ability of logic gates. In t…

math.DS2014

Exceptional sets in homogeneous spaces and Hausdorff dimension

Shirali Kadyrov

In this paper we study the dimension of a family of sets arising in open dynamics. We use exponential mixing results for diagonalizable flows in compact homogeneous spaces to s…

math.OC2014★ 91 cited

Variations on Barbalat's Lemma

Bálint Farkas, Sven-Ake Wegner

It is not hard to prove that a uniformly continuous real function, whose integral up to infinity exists, vanishes at infinity, and it is probably little known that this statement r…

cond-mat.mes-hall2014★ 56 cited

Surface Acoustic Wave Amplification by DC-Voltage Supplied to Graphene Film

Z. Insepov, E. Emelin, O. Kononenko +3

Using a high-resolution X-Ray diffraction measurement method, the surface acoustic waves (SAW) propagation in a graphene film on the surface of a Ca3TaGa3Si2O14 (CTGS) piezoelectri…

cs.CV2014★ 38 cited

Memristive Threshold Logic Circuit Design of Fast Moving Object Detection

Akshay Kumar Maan, Dinesh Sasi Kumar, Sherin Sugathan +1

Real-time detection of moving objects involves memorisation of features in the template image and their comparison with those in the test image. At high sampling rates, such techni…

cs.IT2014★ 10 cited

Integer Forcing-and-Forward Transceiver Design for MIMO Multi-Pair Two-Way Relaying

Seyed Mohammad Azimi-Abarghouyi, Masoumeh Nasiri-Kenari, Behrouz Maham

In this paper, we propose a new transmission scheme, named as Integer Forcing-and-Forward (IFF), for communications among multi-pair multiple-antenna users in which each pair excha…

nlin.CD2014★ 15 cited

Chaotic properties of spin lattices near second-order phase transitions

A. S. de Wijn, B. Hess, B. V. Fine

We perform a numerical investigation of the Lyapunov spectra of chaotic dynamics in lattices of classical spins in the vicinity of second-order ferromagnetic and antiferromagnetic…

math.PR2014★ 1 cited

Fredholm determinants in the multiparticle hopping asymmetric diffusion model

Eunghyun Lee

In this paper we treat the multiparticle hopping asymmetric diffusion model (MADM) of which initial configuration is such that a single site is occupied by infinitely many particle…

quant-ph2014★ 20 cited

Effectiveness of classical spin simulations for describing NMR relaxation of quantum spins

Tarek A. Elsayed, Boris V. Fine

We investigate the limits of effectiveness of classical spin simulations for predicting free induction decays (FIDs) measured by solid-state nuclear magnetic resonance (NMR) on sys…

cond-mat.stat-mech2014★ 28 cited

Sensitivity to small perturbations in systems of large quantum spins

Tarek A. Elsayed, Boris V. Fine

We investigate the sensitivity of nonintegrable large-spin quantum lattices to small perturbations with a particular focus on the time reversal experiments known in statistical phy…

cs.CC2014

A Parameterized Study of Maximum Generalized Pattern Matching Problems

Sebastian Ordyniak, Alexandru Popa

The generalized function matching (GFM) problem has been intensively studied starting with [Ehrenfeucht and Rozenberg, 1979]. Given a pattern p and a text t, the goal is to find a…

math.DS2014

Effective uniqueness of Parry measure and exceptional sets in ergodic theory

Shirali Kadyrov

It is known that hyperbolic dynamical systems admit a unique invariant probability measure with maximal entropy. We prove an effective version of this statement and use it to estim…

astro-ph.HE2014★ 79 cited

Neutrino-driven Turbulent Convection and Standing Accretion Shock Instability in Three-Dimensional Core-Collapse Supernovae

E. Abdikamalov, C. D. Ott, D. Radice +6

We conduct a series of numerical experiments into the nature of three-dimensional (3D) hydrodynamics in the postbounce stalled-shock phase of core-collapse supernovae using 3D gene…

gr-qc2014★ 11 cited

Genericity aspects of black hole formation in the collapse of spherically symmetric slightly inhomogeneous perfect fluids

Seema Satin, Daniele Malafarina, Pankaj S. Joshi

We study the complete gravitational collapse of a class of spherically symmetric inhomogeneous perfect fluid models obtained by introducing small radial perturbations in an otherwi…

cond-mat.mes-hall2014★ 79 cited

Chimeras in SQUID Metamaterials

N. Lazarides, G. Neofotistos, G. P. Tsironis

Regular lattices comprising superconducting quantum interference devices (SQUIDs) form magnetic metamaterials exhibiting extraordinary properties, including tunability, dynamic mul…

hep-th2014★ 31 cited

Relativistic superfluidity and vorticity from the nonlinear Klein-Gordon equation

Chi Xiong, Michael R. R. Good, Yulong Guo +2

We investigate superfluidity, and the mechanism for creation of quantized vortices, in the relativistic regime. The general framework is a nonlinear Klein-Gordon equation in curved…

gr-qc2014★ 8 cited

Geometric creation of quantum vorticity

Michael R. R. Good, Chi Xiong, Alvin J. K. Chua +1

We consider superfluidity and quantum vorticity in rotating spacetimes. The system is described by a complex scalar satisfying a nonlinear Klein-Gordon equation. Rotation terms are…

math.DS2014★ 4 cited

Singular systems of linear forms and non-escape of mass in the space of lattices

S. Kadyrov, D. Y. Kleinbock, E. Lindenstrauss +1

Singular systems of linear forms were introduced by Khintchine in the 1920s, and it was shown by Dani in the 1980s that they are in one-to-one correspondence with certain divergent…

math.RA2014★ 4 cited

Algebraic convex geometries revisited

Kira Adaricheva

Representation of convex geometry as an appropriate join of compatible total orderings of the base set can be achieved, when closure operator of convex geometry is algebraic, or fi…

hep-ph2014★ 39 cited

Laser photon merging in an electromagnetic field inhomogeneity

Holger Gies, Felix Karbstein, Rashid Shaisultanov

We study the effect of laser photon merging, or equivalently high harmonic generation, in the quantum vacuum subject to inhomogeneous electromagnetic fields. Such a process is faci…