Meta Algebras and Biorthogonal Rational Functions: The Hahn Case

2024/05/09 by Satoshi Tsujimoto, Tsujimoto, Satoshi, Luc Vinet +3 · 1 citation
Computer Science · #33C45 #33C80 #Advanced Algebra and Logic #FOS: Physical sciences #Mathematical Physics (math-ph)

paper · pdf · doi:10.48550/arxiv.2405.05692

openalex publication_date 2024/05/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The finite families of biorthogonal rational functions and orthogonal polynomials of Hahn type are interpreted algebraically in a unified way by considering the three-generated meta Hahn algebra and its finite-dimensional representations. The functions of interest arise as overlaps between eigensolutions of generalized and ordinary eigenvalue problems on the representation space. The orthogonality relations and bispectral properties naturally follow from the framework.

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