HAHN'S PROBLEM WITH RESPECT TO SOME PERTURBATIONS OF THE RAISING OPERATOR \(X-c\)

In this paper, we study the Hahn's problem with respect to some raising operators perturbed of the operator \(X-c\), where \(c\) is an arbitrary complex number. More precisely, the two following characterizations hold: up to a normalization, the \(q\)-Hermite (resp. Charlier) polynomial is the...

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Main Authors: Baghdadi Aloui, Jihad Souissi
Format: Article
Language:English
Published: Krasovskii Institute of Mathematics and Mechanics of the Ural Branch of the Russian Academy of Sciences and Ural Federal University named after the first President of Russia B.N.Yeltsin. 2020-12-01
Series:Ural Mathematical Journal
Subjects:
Online Access:https://umjuran.ru/index.php/umj/article/view/259
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author Baghdadi Aloui
Jihad Souissi
author_facet Baghdadi Aloui
Jihad Souissi
author_sort Baghdadi Aloui
collection DOAJ
description In this paper, we study the Hahn's problem with respect to some raising operators perturbed of the operator \(X-c\), where \(c\) is an arbitrary complex number. More precisely, the two following characterizations hold: up to a normalization, the \(q\)-Hermite (resp. Charlier) polynomial is the only \(H_{\alpha,q}\)-classical (resp. \(\mathcal{S}_{\lambda}\)-classical) orthogonal polynomial, where \(H_{\alpha, q}:=X+\alpha H_q\) and \(\mathcal{S}_{\lambda}:=(X+1)-\lambda\tau_{-1}.\)
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publisher Krasovskii Institute of Mathematics and Mechanics of the Ural Branch of the Russian Academy of Sciences and Ural Federal University named after the first President of Russia B.N.Yeltsin.
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spelling doaj.art-994577760f944edd896392369caf80072022-12-21T23:14:51ZengKrasovskii Institute of Mathematics and Mechanics of the Ural Branch of the Russian Academy of Sciences and Ural Federal University named after the first President of Russia B.N.Yeltsin.Ural Mathematical Journal2414-39522020-12-016210.15826/umj.2020.2.002110HAHN'S PROBLEM WITH RESPECT TO SOME PERTURBATIONS OF THE RAISING OPERATOR \(X-c\)Baghdadi Aloui0Jihad Souissi1University of Gabes, Higher Institute of Industrial Systems of Gabes, Street Salah Eddine Elayoubi, 6033 GabesUniversity of Gabes, Faculty of Sciences of Gabes, Street Erriadh 6072 GabesIn this paper, we study the Hahn's problem with respect to some raising operators perturbed of the operator \(X-c\), where \(c\) is an arbitrary complex number. More precisely, the two following characterizations hold: up to a normalization, the \(q\)-Hermite (resp. Charlier) polynomial is the only \(H_{\alpha,q}\)-classical (resp. \(\mathcal{S}_{\lambda}\)-classical) orthogonal polynomial, where \(H_{\alpha, q}:=X+\alpha H_q\) and \(\mathcal{S}_{\lambda}:=(X+1)-\lambda\tau_{-1}.\)https://umjuran.ru/index.php/umj/article/view/259orthogonal polynomials, linear functional, \(\mathcal{o}\)-classical polynomials, raising operators, \(q\)-hermite polynomials, charlier polynomials
spellingShingle Baghdadi Aloui
Jihad Souissi
HAHN'S PROBLEM WITH RESPECT TO SOME PERTURBATIONS OF THE RAISING OPERATOR \(X-c\)
Ural Mathematical Journal
orthogonal polynomials, linear functional, \(\mathcal{o}\)-classical polynomials, raising operators, \(q\)-hermite polynomials, charlier polynomials
title HAHN'S PROBLEM WITH RESPECT TO SOME PERTURBATIONS OF THE RAISING OPERATOR \(X-c\)
title_full HAHN'S PROBLEM WITH RESPECT TO SOME PERTURBATIONS OF THE RAISING OPERATOR \(X-c\)
title_fullStr HAHN'S PROBLEM WITH RESPECT TO SOME PERTURBATIONS OF THE RAISING OPERATOR \(X-c\)
title_full_unstemmed HAHN'S PROBLEM WITH RESPECT TO SOME PERTURBATIONS OF THE RAISING OPERATOR \(X-c\)
title_short HAHN'S PROBLEM WITH RESPECT TO SOME PERTURBATIONS OF THE RAISING OPERATOR \(X-c\)
title_sort hahn s problem with respect to some perturbations of the raising operator x c
topic orthogonal polynomials, linear functional, \(\mathcal{o}\)-classical polynomials, raising operators, \(q\)-hermite polynomials, charlier polynomials
url https://umjuran.ru/index.php/umj/article/view/259
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