Results 11 to 20 of about 325,624 (274)

Geometric approach to asymptotic expansion of Feynman integrals

European Physical Journal C: Particles and Fields, 2011
We present an algorithm that reveals relevant contributions in non-threshold-type asymptotic expansion of Feynman integrals about a small parameter. It is shown that the problem reduces to finding a convex hull of a set of points in a multidimensional ...
A. Pak, A. Smirnov
doaj   +2 more sources

Asymptotic solvers for second-order differential equation systems with multiple frequencies [PDF]

, 2013
In this paper, an asymptotic expansion is constructed to solve second-order dierential equation systems with highly oscillatory forcing terms involving multiple frequencies.
Condon, Marissa, Deaño, Alfredo, Gao, Jing, Iserles, Arieh   +3 more
core   +1 more source

S-asymptotic expansion of distributions

International Journal of Mathematics and Mathematical Sciences, 1988
This paper contains first a definition of the asymptotic expansion at infinity of distributions belonging to G′Rn, named S-asymptotic expansion, as also its properties and application to partial differential equations.
Bogoljub Stankovic
doaj   +1 more source

Toeplitz operators on symplectic manifolds [PDF]

, 2008
We study the Berezin-Toeplitz quantization on symplectic manifolds making use of the full off-diagonal asymptotic expansion of the Bergman kernel. We give also a characterization of Toeplitz operators in terms of their asymptotic expansion.
A. Adem, A.V. Karabegov, B. Kostant, B.V. Fedosov, C. Moreno, D. Borthwick, D. Borthwick, F. Bayen, F. Bayen, F. Bayen, F.A. Berezin, George Marinescu, J.-M. Bismut, J.-M. Souriau, L. Boutet de Monvel, L. Boutet de Monvel, L. Charles, L. Charles, L.A. Coburn, M. Bordemann, M. Cahen, M. Cahen, M. Cahen, M. Cahen, M. Schlichenmaier, M.E. Taylor, M.J. Pflaum, M.J. Pflaum, N. Berline, S. Klimek, V. Guillemin, X. Dai, X. Ma, X. Ma, X. Ma, X. Ma, X. Ma, Xiaonan Ma   +37 more
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Black Hole Entropy Associated with Supersymmetric Sigma Model [PDF]

, 2003
By means of an identity that equates elliptic genus partition function of a supersymmetric sigma model on the $N$-fold symmetric product $S^N X$ of $X$ ($S^N X=X^N/S_N$, $S_N$ is the symmetric group of $N$ elements) to the partition function of a second ...
A. A. Bytsenko, A. Schellekens, A. Schellekens, A. Strominger, A.A. Bytsenko, A.A. Bytsenko, A.A. Bytsenko, A.A. Bytsenko, A.A. Bytsenko, A.A. Bytsenko, A.A. Bytsenko, C. Callan, C. Vafa, E. Halyo, E. Halyo, E. Witten, F. Hirzebruch, G. t’Hooft, G.T. Horowitz, I. Brevik, I. Brevik, J. Maldacena, J.A. Harvey, L. Dixon, L. Dixon, M. C. B. Abdalla, M. E. X. Guimarães, M.C.B. Abdalla, R. Dijkgraaf, R. Dijkgraaf, R.E. Borcherds, R.K. Kaul, S.K. Rama, T. Damour, T. Eguchi, T. Kawai   +35 more
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MHD Flow due to the Nonlinear Stretching of a Porous Sheet

Advances in Mathematical Physics, 2016
The MHD flow due to the nonlinear stretching of a porous sheet is investigated. A closed form solution is obtained when the stretching rate is inversely proportional to the distance from the origin.
Tarek M. A. El-Mistikawy
doaj   +1 more source

Random normal matrices, Bergman kernel and projective embeddings [PDF]

, 2014
We investigate the analogy between the large N expansion in normal matrix models and the asymptotic expansion of the determinant of the Hilb map, appearing in the study of critical metrics on complex manifolds via projective embeddings.
Klevtsov, Semyon
core   +2 more sources

A Viscous Fluid Flow through a Thin Channel with Mixed Rigid-Elastic Boundary: Variational and Asymptotic Analysis

Abstract and Applied Analysis, 2012
We study the nonsteady Stokes flow in a thin tube structure composed by two thin rectangles with lateral elastic boundaries which are connected by a domain with rigid boundaries.
R. Fares, G. P. Panasenko, R. Stavre
doaj   +1 more source

Integral Representation and Asymptotic Expansion for Hypergeometric Coherent States

Mathematics, 2022
An integral representation is found for hypergeometric coherent states. It contains a generalized hypergeometric function. An asymptotic expansion of hypergeometric coherent states near z=1 is constructed.
Alexander Pereskokov
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The step-type contrast structure for a second order semi-linear singularly perturbed differential-difference equation

Advances in Difference Equations, 2020
The step-type contrast structure for a second order semi-linear singularly perturbed differential-difference equation is studied. Using the methods of boundary function and fractional steps, we construct the formula asymptotic expansion of the problem ...
Mei Xu, Bingxian Wang
doaj   +1 more source