Darboux equivalence for matrix-valued orthogonal polynomials

Bibliographic Details
Title: Darboux equivalence for matrix-valued orthogonal polynomials
Authors: Parisi, Ignacio Bono, Pacharoni, Inés, Zurrián, Ignacio
Publication Year: 2024
Collection: Mathematics
Subject Terms: Mathematics - Classical Analysis and ODEs, 33C45, 42C05, 33C47
More Details: In this work, we give some criteria that allow us to decide when two sequences of matrix-valued orthogonal polynomials are related via a Darboux transformation and to build explicitly such transformation. In particular, they allow us to see when and how any given sequence of polynomials is Darboux related to a diagonal matrix of classic orthogonal polynomials. We also explore the notion of Darboux-irreducibility and study some sequences that are not a Darboux transformation of classical orthogonal polynomials.
Document Type: Working Paper
Access URL: http://arxiv.org/abs/2407.20994
Accession Number: edsarx.2407.20994
Database: arXiv
More Details
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