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Multiple orthogonal polynomials for classical weights [PDF]

open access: bronzeTransactions of the American Mathematical Society, 2003
A new set of special functions, which has a wide range of applications from number theory to integrability of nonlinear dynamical systems, is described. The multiple orthogonal polynomials with respect to \(p>1\) weights satisfying Pearson's equation. In particular, a classification of multiple orthogonal polynomials with respect to classical weights ...
A. I. Aptekarev   +2 more
openaire   +3 more sources

Algorithms for classical orthogonal polynomials

open access: green, 1996
In this article explicit formulas for the recurrence equation p_{n+1}(x) = (A_n x + B_n) p_n(x) - C_n p_{n-1}(x) and the derivative rules sigma(x) p'_n(x) = alpha_n p_{n+1}(x) + beta_n p_n(x) + gamma_n p_{n-1}(x) and sigma(x) p'_n(x) = (alpha_n-tilde x + beta_n-tilde) p_n(x) + gamma_n-tilde p_{n-1}(x) respectively which are valid for the orthogonal ...
Koepf, Wolfram, Schmersau, Dieter
openaire   +4 more sources

On moments of classical orthogonal polynomials

open access: yesJournal of Mathematical Analysis and Applications, 2015
Abstract In this work, using the inversion coefficients and some connection coefficients between some polynomial sets, we give explicit representations of the moments of all the orthogonal polynomials belonging to the Askey–Wilson scheme. Generating functions for some of these moments are also provided.
P. N. Sadjang   +2 more
semanticscholar   +3 more sources

Classical orthogonal polynomials: dependence of parameters

open access: bronzeJournal of Computational and Applied Mathematics, 2000
The authors study connection problems between classical orthogonal polynomials and their derivatives with respect to (one of) their parameter(s). They use their so-called \texttt{Navima} algorithm to derive recurrence relations for the connection coefficients linking a family of classical orthogonal polynomials (like the Laguerre and Jacobi polynomials)
A. Zarzo   +3 more
openaire   +4 more sources

On ( p , q ) $(p,q)$ -classical orthogonal polynomials and their characterization theorems

open access: yesAdvances in Difference Equations, 2017
In this paper, we introduce a general ( p , q ) $(p, q)$ -Sturm-Liouville difference equation whose solutions are ( p , q ) $(p, q)$ -analogues of classical orthogonal polynomials leading to Jacobi, Laguerre, and Hermite polynomials as ( p , q ) → ( 1 ...
M Masjed-Jamei   +3 more
doaj   +2 more sources

A New First Finite Class of Classical Orthogonal Polynomials Operational Matrices: An Application for Solving Fractional Differential Equations

open access: yesContemporary Mathematics, 2023
In this paper, new operational matrices (OMs) of ordinary and fractional derivatives (FDs) of a first finite class of classical orthogonal polynomials (FFCOP) are introduced.
H. M. Ahmed
semanticscholar   +1 more source

Generalized Quasi-Orthogonal Functional Networks Applied in Parameter Sensitivity Analysis of Complex Dynamical Systems

open access: yesElektronika ir Elektrotechnika, 2022
This paper presents one possible application of generalized quasi-orthogonal functional networks in the sensitivity analysis of complex dynamical systems.
Sasa S. Nikolic   +6 more
doaj   +1 more source

On Certain Properties and Applications of the Perturbed Meixner–Pollaczek Weight

open access: yesMathematics, 2021
This paper deals with monic orthogonal polynomials orthogonal with a perturbation of classical Meixner–Pollaczek measure. These polynomials, called Perturbed Meixner–Pollaczek polynomials, are described by their weight function emanating from an ...
Abey S. Kelil   +2 more
doaj   +1 more source

The Stenger conjectures and the A-stability of collocation Runge-Kutta methods

open access: yesJournal of Inequalities and Applications, 2023
Stenger conjectures are claims about the location of the eigenvalues of matrices whose elements are certain integrals involving basic Lagrange interpolating polynomials supported on the zeros of orthogonal polynomials. In this paper, we show the validity
Rachid Ait-Haddou, Hoda Alselami
doaj   +1 more source

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