<Reference List> | |
Type: | Preprint |
National /International: | International |
Title: | Bidiagonal factorization of the recurrence matrix for the Hahn multiple orthogonal polynomials |
Publication Date: | 2023-08 |
Authors: |
- Amílcar Branquinho
- Juan E. F. Díaz - Ana Foulquié-Moreno - Manuel Mañas |
Abstract: | This paper explores a factorization using bidiagonal matrices of the recurrence matrix of Hahn multiple orthogonal polynomials. The factorization is expressed in terms of ratios involving the generalized hypergeometric function \( _3F_2 \) and is proven using recently discovered contiguous relations. Moreover, employing the multiple Askey scheme, a bidiagonal factorization is derived for the Hahn descendants, including Jacobi-Piñeiro, multiple Meixner (kinds I and II), multiple Laguerre (kinds I and II), multiple Kravchuk, and multiple Charlier, all represented in terms of hypergeometric functions. For the cases of multiple Hahn, Jacobi-Piñeiro, Meixner of kind II, and Laguerre of kind I, where there exists a region where the recurrence matrix is nonnegative, subregions are identified where the bidiagonal factorization becomes a positive bidiagonal factorization. |
Institution: | arXiv:2308.01288 |
Online version: | https://arxiv.org/abs/2308.01288 |
Download: | Not available |