English

Forming a symmetric, unreduced, tridiagonal matrix with a given spectrum

Numerical Analysis 2023-11-07 v1 Numerical Analysis

Abstract

Given a set of nn distinct real numbers, our goal is to form a symmetric, unreduced, tridiagonal, matrix with those numbers as eigenvalues. We give an algorithm which is a stable implementation of a naive algorithm forming the characteristic polynomial and then using a technique of Schmeisser.

Keywords

Cite

@article{arxiv.2311.02677,
  title  = {Forming a symmetric, unreduced, tridiagonal matrix with a given spectrum},
  author = {Luca Dieci and Alessandro Pugliese},
  journal= {arXiv preprint arXiv:2311.02677},
  year   = {2023}
}

Comments

5 pages, 1 figure

R2 v1 2026-06-28T13:12:02.179Z