Convergence condition for a restarted GMRES method augmented with eigenspaces

• ID: 2280, RIV: 10163680
• ISSN: 1070-5325, ISBN: not specified
• source: Numerical Linear Algebra With Applications
• keywords:
• authors: Jan Zítko
• authors from KNM: not assigned

Abstract

The behaviour of residual bounds is described for various situations which can arise during the restarted GMRES process augmented with eigenspaces. Sufficient conditions for convergence are formulated.