Matrix Jacobi biorthogonal polynomials via Riemann–Hilbert problem

DOI10.1090/proc/16431arXiv2209.15372OpenAlexW4318773905MaRDI QIDQ6083348

Unnamed Author, Ana Foulquié Moreno, Amílcar Branquinho, Manuel Mañas

Publication date: 31 October 2023

Published in: Proceedings of the American Mathematical Society (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/2209.15372

zbMATH Keywords

Riemann-Hilbert problemsdiscrete integrable systemsmatrix Pearson equationsnon-abelian discrete Painlevé IV equation

Mathematics Subject Classification ID

Orthogonal polynomials and functions of hypergeometric type (Jacobi, Laguerre, Hermite, Askey scheme, etc.) (33C45) Orthogonal functions and polynomials, general theory of nontrigonometric harmonic analysis (42C05) Discrete version of topics in analysis (39A12) Inverse problems (Riemann-Hilbert, inverse differential Galois, etc.) for ordinary differential equations in the complex domain (34M50) Matrix exponential and similar functions of matrices (15A16) Integrable difference and lattice equations; integrability tests (39A36)

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