arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2202.09575math.CA
收藏

二元正交多项式的二次分解

Quadratic decomposition of bivariate orthogonal polynomials

Amílcar Branquinho, Ana Foulquié Moreno, Teresa E. Pérez

摘要:

我们描述了二元多项式序列正交于一个对称的权函数的几个二元多项式序列正交于初始重量的Christoffel变换下的二次变换。我们分析了一个对称的二元正交多项式序列的建设从一个给定的,正交的权函数定义在正平面上。在这一描述中起着重要作用的一类Backlund型矩阵变换所涉及的三项矩阵系数。本文以球上和单形上的对称正交多项式之间的关系为例进行了研究。

英文摘要:

We describe bivariate polynomial sequences orthogonal to a symmetric weight function in terms of several bivariate polynomial sequences orthogonal with respect to Christoffel transformations of the initial weight under a quadratic transformation. We analyze the construction of a symmetric bivariate orthogonal polynomial sequence from a given one, orthogonal to a weight function defined on the positive plane. In this description plays an important role a sort of Backlund type matrix transformations for the involved three term matrix coefficients. We take as a case study relations between symmetric orthogonal polynomials defined on the ball and on the simplex.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑