Convergence condition for a restarted GMRES method augmented with eigenspaces

• ID: 2406, RIV: 10032750
• ISSN: 1070-5325, ISBN: not specified
• source: Numerical Linear Algebra With Applications
• keywords: Convergence; condition; restarted; GMRES; method; augmented; eigenspaces
• 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.