Results 31 to 40 of about 80,472 (232)

Limit theorems for linear eigenvalue statistics of overlapping matrices [PDF]

, 2015
The paper proves several limit theorems for linear eigenvalue statistics of overlapping Wigner and sample covariance matrices. It is shown that the covariance of the limiting multivariate Gaussian distribution is diagonalized by choosing the Chebyshev ...
Kargin, Vladislav
core   +1 more source

On Leapfrog-Chebyshev Schemes

SIAM Journal on Numerical Analysis, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Carle, Constantin, Hochbruck, Marlis, Sturm, Andreas   +2 more
openaire   +4 more sources

Dynamic multi‐objective optimisation of complex networks based on evolutionary computation

IET Networks, EarlyView., 2022
Abstract As the problems concerning the number of information to be optimised is increasing, the optimisation level is getting higher, the target information is more diversified, and the algorithms are becoming more complex; the traditional algorithms such as particle swarm and differential evolution are far from being able to deal with this situation ...
Linfeng Huang
wiley   +1 more source

Approximating weak Chebyshev subspaces by Chebyshev subspaces

Journal of Approximation Theory, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Frank Deutsch, Larry L. Schumaker, Zvi Ziegler   +2 more
openaire   +2 more sources

An optimization of Chebyshev’s method

Journal of Complexity, 2009
From Chebyshev's method, new third-order multipoint iterations are constructed with their efficiency close to that of Newton's method and the same region of accessibility. © 2009 Elsevier Inc. All rights reserved.
J. A. Ezquerro, Miguel Ángel Hernández-Verón   +1 more
openaire   +4 more sources

Chebyshev Interpolation Using Almost Equally Spaced Points and Applications in Emission Tomography

Mathematics, 2023
Since their introduction, Chebyshev polynomials of the first kind have been extensively investigated, especially in the context of approximation and interpolation.
Vangelis Marinakis, Athanassios S. Fokas, George A. Kastis, Nicholas E. Protonotarios   +3 more
doaj   +1 more source

An efficient scheme for numerical simulations of the spin-bath decoherence [PDF]

, 2003
We demonstrate that the Chebyshev expansion method is a very efficient numerical tool for studying spin-bath decoherence of quantum systems. We consider two typical problems arising in studying decoherence of quantum systems consisting of few coupled ...
A. J. Leggett, B. Georgeot, C. Leforestier, E. Joos, H. A. De Raedt, H. De Raedt, H. Tal-Ezer, H. Tal-Ezer, H. Tal-Ezer, H. Wang, J. Jaklič, J. Preskill, K. Saito, K. Saito, M. H. Beck, M. Suzuki, M. Thoss, P. de Vries, R. Kosloff, R. N. Silver, T. Iitaka, U. Manthe, V. V. Dobrovitski, W. H. Zurek, W. H. Zurek, Y. L. Loh, Y. L. Loh   +26 more
core   +4 more sources

Chebyshev polynomials and the Frohman-Gelca formula [PDF]

, 2014
Using Chebyshev polynomials, C. Frohman and R. Gelca introduce a basis of the Kauffman bracket skein module of the torus. This basis is especially useful because the Jones-Kauffman product can be described via a very simple Product-to-Sum formula ...
Queffelec, Hoel, Russell, Heather M.
core   +5 more sources

An effective spectral collocation method for the direct solution of high-order ODEs [PDF]

, 2006
This paper reports a new Chebyshev spectral collocation method for directly solving high-order ordinary differential equations (ODEs). The construction of the Chebyshev approximations is based on integration rather than conventional differentiation. This
Mai-Duy, Nam
core   +2 more sources

Extension of the Chebyshev Method of Quassi-Linear Parabolic P.D.E.S With Mixed Boundary Conditions

مجلة بغداد للعلوم, 2009
The researcher [1-10] proposed a method for computing the numerical solution to quasi-linear parabolic p.d.e.s using a Chebyshev method. The purpose of this paper is to extend the method to problems with mixed boundary conditions.
Baghdad Science Journal
doaj   +1 more source