Connection coefficients for ultraspherical polynomials with argument doubling and generalized bispectrality
Connection coefficients for ultraspherical polynomials with argument doubling and generalized bispectrality
复制标题
具有参数加倍和广义双谱性的超球形多项式的连接系数
DOI:
10.1007/s11854-023-0271-6
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Geronimo, Jeffrey S.
中科院分区:
文献类型:
--
作者:
Derevyagin, Maxim;Geronimo, Jeffrey S.
We start by presenting a generalization of a discrete wave equation that is satisfied by the entries of the matrix coefficients of the refinement equation corresponding to the multiresolution analysis of Alpert. The entries are functions of two discrete variables and they can be expressed in terms of the Legendre polynomials. Next, we generalize these functions to the case of the ultraspherical polynomials and show that these new functions obey two generalized eigenvalue problems in each of the two discrete variables, which constitute a generalized bispectral problem.
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