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arXiv · 1210.2359

Global Asymptotics of the Hahn Polynomials

Y. Lin·R. Wong
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Abstract

In this paper, we study the asymptotics of the Hahn polynomials Q_n(x; α, β, N) as the degree n grows to infinity, when the parameters α and β are fixed and the ratio of n/N = c is a constant in the interval (0, 1). Uniform asymptotic formulas in terms of Airy functions and elementary functions are obtained for z in three overlapping regions, which together cover the whole complex plane. Our method is based on a modified version of the Riemann-Hilbert approach introduced by Deift and Zhou.

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Y. Lin, R. Wong. 2012-10-08. Global Asymptotics of the Hahn Polynomials. https://arxiv.org/abs/1210.2359

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