Meta Algebras and Special Functions: the Racah Case

Fuente: arXiv
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Main Authors: Crampé, Nicolas, Labriet, Quentin, Morey, Lucia, Tsujimoto, Satoshi, Vinet, Luc, Zhedanov, Alexei
Format: Preprint
Published: 2026
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author Crampé, Nicolas
Labriet, Quentin
Morey, Lucia
Tsujimoto, Satoshi
Vinet, Luc
Zhedanov, Alexei
author_facet Crampé, Nicolas
Labriet, Quentin
Morey, Lucia
Tsujimoto, Satoshi
Vinet, Luc
Zhedanov, Alexei
contents Finite families of biorthogonal rational functions and orthogonal polynomials of Racah-type are studied within a unified algebraic framework based on the meta Racah algebra and its finite-dimensional representations. These functions are identified as overlap coefficients between eigensolutions of generalized and standard eigenvalue problems posited on the representation space. The approach naturally yields their orthogonality relations and bispectral properties.
format Preprint
id arxiv_https___arxiv_org_abs_2603_28839
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Meta Algebras and Special Functions: the Racah Case
Crampé, Nicolas
Labriet, Quentin
Morey, Lucia
Tsujimoto, Satoshi
Vinet, Luc
Zhedanov, Alexei
Classical Analysis and ODEs
Mathematical Physics
Finite families of biorthogonal rational functions and orthogonal polynomials of Racah-type are studied within a unified algebraic framework based on the meta Racah algebra and its finite-dimensional representations. These functions are identified as overlap coefficients between eigensolutions of generalized and standard eigenvalue problems posited on the representation space. The approach naturally yields their orthogonality relations and bispectral properties.
title Meta Algebras and Special Functions: the Racah Case
topic Classical Analysis and ODEs
Mathematical Physics
url https://arxiv.org/abs/2603.28839