An Elsner-like perturbation theorem for generalized eigenvalues

TitleAn Elsner-like perturbation theorem for generalized eigenvalues
Publication TypeJournal Articles
Year of Publication2004
AuthorsStewart G.W
JournalLinear Algebra and its Applications
Volume390
Pagination1 - 5
Date Published2004/10/01/
ISBN Number0024-3795
Keywordseigenvalue, Elsner’s theorem, Generalized eigenvalue, Perturbation theory
Abstract

In 1985 Elsner established a general bound on the distance between an eigenvalue of a matrix and the closest eigenvalue of a perturbation of that matrix. In this note, we show that a similar result holds for the generalized eigenvalue problem.

URLhttp://www.sciencedirect.com/science/article/pii/S0024379504002459
DOI10.1016/j.laa.2004.05.006