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arXiv 1205.2103math.CAmath.STstat.TH
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表征q-正交多项式的Stieltjes函数的一阶非齐次q-差分方程

First order non-homogeneous q-difference equation for Stieltjes function characterizing q-orthogonal polynomials

J. Arvesú, A. Soria-Lorente

摘要:

本文利用Stieltjes函数的一个差分性质,即该函数解一阶非齐次q-差分方程,给出了某些经典q-正交多项式的一个特征.求出了上述q-差分方程(用超几何级数表示)在几种典型情况下的解,即q-Charlier,q-Kravchuk,q-Meixner和q-Hahn.

英文摘要:

In this paper we give a characterization of some classical q-orthogonal polynomials in terms of a difference property of the associated Stieltjes function, i.e this function solves a first order non-homogeneous q-difference equation. The solutions of the aforementioned q-difference equation (given in terms of hypergeometric series) for some canonical cases, namely, q-Charlier, q-Kravchuk, q-Meixner and q-Hahn are worked out.

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