Accurate algorithms for Bessel matrices
Numerical Analysis
2025-01-20 v1 Numerical Analysis
Abstract
In this paper, we prove that any collocation matrix of Bessel polynomials at positive points is strictly totally positive, that is, all its minors are positive. Moreover, an accurate method to construct the bidiagonal factorization of these matrices is obtained and used to compute with high relative accuracy the eigenvalues, singular values and inverses. Similar results for the collocation matrices for the reverse Bessel polynomials are also obtained. Numerical examples illustrating the theoretical results are included.
Cite
@article{arxiv.2501.10076,
title = {Accurate algorithms for Bessel matrices},
author = {Jorge Delgado and Héctor Orera and Juan Manuel Peña},
journal= {arXiv preprint arXiv:2501.10076},
year = {2025}
}