Differential and difference equations for recurrence coefficients of orthogonal polynomials with a singularly perturbed Laguerre-type weight

DOI10.1090/proc/16348OpenAlexW4309126317WikidataQ117219888 ScholiaQ117219888MaRDI QIDQ5889752

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Publication date: 27 April 2023

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

Full work available at URL: https://arxiv.org/abs/2209.07128

zbMATH Keywords

orthogonal polynomialsdifference equationsasymptotic expansionsrecurrence coefficientsladder operator approachsingularly perturbed Laguerre-type weight

Mathematics Subject Classification ID

Orthogonal functions and polynomials, general theory of nontrigonometric harmonic analysis (42C05) Asymptotic approximations, asymptotic expansions (steepest descent, etc.) (41A60) Basic orthogonal polynomials and functions (Askey-Wilson polynomials, etc.) (33D45) Hypergeometric functions (33Cxx)

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