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Multiple orthogonal polynomial ensembles [PDF]

open access: green, 2009
Multiple orthogonal polynomials are traditionally studied because of their connections to number theory and approximation theory. In recent years they were found to be connected to certain models in random matrix theory.
Kuijlaars, Arno B. J.
core   +4 more sources

Nearest Neighbor Recurrence Relations for Meixner–Angelesco Multiple Orthogonal Polynomials of the Second Kind

open access: yesMathematics, 2023
This paper studies a new family of Angelesco multiple orthogonal polynomials with shared orthogonality conditions with respect to a system of weight functions, which are complex analogs of Pascal distributions on a legged star-like set.
Jorge Arvesú   +1 more
doaj   +1 more source

Multiple big q-Jacobi polynomials [PDF]

open access: yesBulletin of Mathematical Sciences, 2020
Here, we investigate type II multiple big q-Jacobi orthogonal polynomials. We provide their explicit formulae in terms of basic hypergeometric series, raising and lowering operators, Rodrigues formulae, third-order q-difference equation, and we obtain ...
Fethi Bouzeffour, Mubariz Garayev
doaj   +1 more source

Poly-Genocchi polynomials and its applications

open access: yesAIMS Mathematics, 2021
In this paper, we discussed some new properties on the newly defined family of Genocchi polynomials, called poly-Genocchi polynomials. These polynomials are extensions from the Genocchi polynomials via generating function involving polylogarithm function.
Chang Phang   +2 more
doaj   +1 more source

On Perfectness of Systems of Weights Satisfying Pearson’s Equation with Nonstandard Parameters

open access: yesAxioms, 2023
Measures generating classical orthogonal polynomials are determined by Pearson’s equation, whose parameters usually provide the positivity of the measures.
Alexander Aptekarev   +2 more
doaj   +1 more source

Coherent Dynamics of Quantum Systems with Non-Uniform Fourier Space Excited by Laser Radiation

open access: yesZanco Journal of Pure and Applied Sciences, 2022
The algorithm is presented to solve dynamical equations for excitation of molecular models with multiple energy levels. It uses only discrete structures: discrete orthogonal polynomials constructed specially in Fourier space of the probability amplitudes,
Sary Banjak , Vadim Savva
doaj   +1 more source

On the ω-multiple Meixner polynomials of the first kind

open access: yesJournal of Inequalities and Applications, 2020
In this study, we introduce a new family of discrete multiple orthogonal polynomials, namely ω-multiple Meixner polynomials of the first kind, where ω is a positive real number.
Sonuç Zorlu Oğurlu, İlkay Elidemir
doaj   +1 more source

On the ω-multiple Charlier polynomials

open access: yesAdvances in Difference Equations, 2021
The main aim of this paper is to define and investigate more general multiple Charlier polynomials on the linear lattice ω N = { 0 , ω , 2 ω , … } $\omega \mathbb{N} = \{ 0,\omega ,2\omega ,\ldots \} $ , ω ∈ R $\omega \in \mathbb{R}$ .
Mehmet Ali Özarslan, Gizem Baran
doaj   +1 more source

Angular Correlation Using Rogers-Szegő-Chaos

open access: yesMathematics, 2020
Polynomial chaos expresses a probability density function (pdf) as a linear combination of basis polynomials. If the density and basis polynomials are over the same field, any set of basis polynomials can describe the pdf; however, the most logical ...
Christine Schmid, Kyle J. DeMars
doaj   +1 more source

Numerical solution of neutral delay differential equations using orthogonal neural network

open access: yesScientific Reports, 2023
In this paper, an efficient orthogonal neural network (ONN) approach is introduced to solve the higher-order neutral delay differential equations (NDDEs) with variable coefficients and multiple delays.
Chavda Divyesh Vinodbhai, Shruti Dubey
doaj   +1 more source

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