Results 111 to 120 of about 561,686 (251)

$q$-Classical orthogonal polynomials: A general difference calculus approach

open access: yes, 2009
It is well known that the classical families of orthogonal polynomials are characterized as eigenfunctions of a second order linear differential/difference operator.
A.F. Nikiforov   +26 more
core   +4 more sources

Fast Computation of Hahn Polynomials for High Order Moments

open access: green, 2021
Basheera M. Mahmmod   +3 more
openalex   +1 more source

The role of orthogonal polynomials in the six-vertex model and its combinatorial applications

open access: yes, 2006
The Hankel determinant representations for the partition function and boundary correlation functions of the six-vertex model with domain wall boundary conditions are investigated by the methods of orthogonal polynomial theory.
A G Pronko   +24 more
core   +2 more sources

Properties of some families of hypergeometric orthogonal polynomials in several variables

open access: yes, 1996
Limiting cases are studied of the Koornwinder-Macdonald multivariable generalization of the Askey-Wilson polynomials. We recover recently and not so recently introduced families of hypergeometric orthogonal polynomials in several variables consisting of ...
van Diejen, Jan F.
core   +2 more sources

Bidiagonal factorization of the recurrence matrix for the Hahn multiple orthogonal polynomials [PDF]

open access: green, 2023
Amílcar Branquinho   +3 more
openalex   +1 more source

Integral Representations of the Wilson Polynomials and the Continuous Dual Hahn Polynomials

open access: yesAdvances in Applied Mathematics, 1999
Let \(\{p_n(x)\}_{n=0,1, \dots}\) denote the set of monic orthogonal polynomials, \(p_n(x)\) of degree \(n\), associated with the weight function \(w(x)\). Then it is straightforward to show \[ p_n(x)={1\over C} \int^\infty_{-\infty} dx_1w(x_1) \dots\int^\infty_{- \infty} dx_Nw(x_N) \prod^N_{l=1} (x-x_1) \prod_{1\leq ...
openaire   +2 more sources

An Orthogonal Polynomial Solution to the Confluent-Type Heun’s Differential Equation

open access: yesMathematics
In this work, we present both analytical and numerical solutions to a seven-parameter confluent Heun-type differential equation. This second-order linear differential equation features three singularities: two regular singularities and one irregular ...
Saiful R. Mondal, Varun Kumar
doaj   +1 more source

Quadratic decomposition of a Laguerre-Hahn polynomial sequence I

open access: yesBulletin of the Belgian Mathematical Society - Simon Stevin, 2010
Let \(P_n\) and \(B_n\) be sequences of monic orthogonal polynomials such that \(B_{2n}(x)=P_n(x^2)\) for all \(n\geq0\). In the present paper, the authors prove that, if one of the sequences is a Laguerre-Hahn orthogonal polynomial sequence, then so is the other.
Bouras, B., Marcellan, F.
openaire   +4 more sources

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