A new product formula involving Bessel functions

In this paper, we consider the normalized Bessel function of index , we find an integral representation of the term . This allows us to establish a product formula for the generalized Hankel function on . is the kernel of the integral transform arising from the Dunkl theory. Indeed we show that can...

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Bibliographic Details
Published inIntegral transforms and special functions Vol. 33; no. 3; pp. 247 - 263
Main Authors Boubatra, Mohamed Amine, Negzaoui, Selma, Sifi, Mohamed
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 04.03.2022
Taylor & Francis Ltd
Subjects
Bessel functions
convolution structure
Gegenbauer polynomials
generalized Hankel and Dunkl transforms
Hankel functions
Integral transforms
Kernels
Mathematical analysis
Mathematics
Operators (mathematics)
Polynomials
Product formula
translation operator
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Summary:In this paper, we consider the normalized Bessel function of index , we find an integral representation of the term . This allows us to establish a product formula for the generalized Hankel function on . is the kernel of the integral transform arising from the Dunkl theory. Indeed we show that can be expressed as an integral in terms of with explicit kernel invoking Gegenbauer polynomials for all . The obtained result generalizes the product formulas proved by M. Rösler for Dunkl kernel when n = 1 and by S. Ben Said when n = 2. As application, we define and study a translation operator and a convolution structure associated to . They share many important properties with their analogous in the classical Fourier theory.
ISSN:1065-2469
1476-8291
DOI:10.1080/10652469.2021.1926454