On Harmonic Ritz vectors and the stagnation of GMRES
Numerical Analysis
2019-02-22 v1
Abstract
This paper derives a necessary and sufficient condition for the coincidence of Harmonic residual vectors and the residual vector in GMRES. The properties of the harmonic Ritz values at the stagnation of GMRES were described in the Proposition-4.2 of [1]. Necessary and sufficient conditions basing on Harmonic Ritz vectors for the stagnation have derived in this paper.
Keywords
Cite
@article{arxiv.1902.08049,
title = {On Harmonic Ritz vectors and the stagnation of GMRES},
author = {Mashetti Ravibabu},
journal= {arXiv preprint arXiv:1902.08049},
year = {2019}
}