Integral Representations of Ultraspherical Polynomials II
Classical Analysis and ODEs
2021-01-29 v1
Abstract
In the first part, by the first author's work of 1972, an integral representation for an ultraspherical polynomial of higher index in terms of one of lower index and an infinite series was obtained. While this representation works well from a theoretical point of view, it is not numerically satisfactory as it involves polynomials of high degree, which are numerically unstable. Here we sum this series to obtain an integral, which is numerically tractable.
Keywords
Cite
@article{arxiv.2101.11809,
title = {Integral Representations of Ultraspherical Polynomials II},
author = {N. H. Bingham and Tasmin L. Symons},
journal= {arXiv preprint arXiv:2101.11809},
year = {2021}
}
Comments
The results in this paper replace Section 4 in arXiv:1812.02103v1