Results 1 to 10 of about 61,895 (236)

Pearson equations for discrete orthogonal polynomials: III—Christoffel and Geronimus transformations [PDF]

open access: hybridRACSAM, 2022
Contiguous hypergeometric relations for semiclassical discrete orthogonal polynomials are described as Christoffel and Geronimus transformations.
Manuel Mañas
openalex   +3 more sources

Laguerre–Freud Equations for the Gauss Hypergeometric Discrete Orthogonal Polynomials

open access: yesMathematics, 2023
The Cholesky factorization of the moment matrix is considered for the Gauss hypergeometric discrete orthogonal polynomials. This family of discrete orthogonal polynomials has a weight with first moment given by ρ0=2F1a,bc+1;η.
Itsaso Fernández-Irisarri   +1 more
doaj   +2 more sources

A General Method for Generating Discrete Orthogonal Matrices [PDF]

open access: yesIEEE Access, 2021
Discrete orthogonal matrices have applications in information coding and cryptography. It is often challenging to generate discrete orthogonal matrices.
Ka-Hou Chan, Wei Ke, Sio-Kei Im
doaj   +2 more sources

Discrete Spectral Transformations of Skew Orthogonal Polynomials and Associated Discrete Integrable Systems [PDF]

open access: diamondSymmetry, Integrability and Geometry: Methods and Applications, 2012
Discrete spectral transformations of skew orthogonal polynomials are presented. From these spectral transformations, it is shown that the corresponding discrete integrable systems are derived both in 1+1 dimension and in 2+1 dimension. Especially in the (
Hiroshi Miki   +2 more
doaj   +2 more sources

Discrete Orthogonal Polynomials with Hypergeometric Weights and Painlevé VI [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2018
We investigate the recurrence coefficients of discrete orthogonal polynomials on the non-negative integers with hypergeometric weights and show that they satisfy a system of non-linear difference equations and a non-linear second order differential ...
G. Filipuk, W. Assche
semanticscholar   +5 more sources

Recurrence coefficients for discrete orthogonal polynomials with hypergeometric weight and discrete Painlevé equations [PDF]

open access: greenJournal of Physics A: Mathematical and Theoretical, 2020
Over the last decade it has become clear that discrete Painlevé equations appear in a wide range of important mathematical and physical problems. Thus, the question of recognizing a given non-autonomous recurrence as a discrete Painlevé equation and ...
Anton Dzhamay   +2 more
openalex   +3 more sources

Differential equations for discrete Laguerre–Sobolev orthogonal polynomials [PDF]

open access: green, 2014
The aim of this paper is to study differential properties of orthogonal polynomials with respect to a discrete Jacobi-Sobolev bilinear form with mass point at −1 and/or +1.
Antonio J. Durán   +1 more
semanticscholar   +4 more sources

Discrete Transforms and Orthogonal Polynomials of (Anti)symmetric Multivariate Sine Functions

open access: yesEntropy, 2018
Sixteen types of the discrete multivariate transforms, induced by the multivariate antisymmetric and symmetric sine functions, are explicitly developed. Provided by the discrete transforms, inherent interpolation methods are formulated.
Adam Brus   +2 more
doaj   +2 more sources

From Krall discrete orthogonal polynomials to Krall polynomials [PDF]

open access: greenJournal of Mathematical Analysis and Applications, 2017
We show how to get Krall polynomials from Krall discrete polynomials using a procedure of passing to the limit in some of the parameters of the family. We also show that this procedure has to be different to the standard one used in the Askey scheme to go from the classical discrete polynomials to the classical polynomials.
Antonio J. Durán
openalex   +4 more sources

Classical discrete symplectic ensembles on the linear and exponential lattice: skew orthogonal polynomials and correlation functions [PDF]

open access: greenTransactions of the American Mathematical Society, 2019
The eigenvalue probability density function for symplectic invariant random matrix ensembles can be generalized to discrete settings involving either a linear or an exponential lattice. The corresponding correlation functions can be expressed in terms of
Peter J. Forrester, Shi‐Hao Li
semanticscholar   +5 more sources

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