New convergence results on the global GMRES method for diagonalizable matrices
- Bellalij, M.
- Jbilou, K.
- Sadok, H.
Publication date
October 2008
DOI Publisher
Elsevier B.V. ISSN
0377-0427 Citation count (estimate)
14Abstract
AbstractIn the present paper, we give some new convergence results of the global GMRES method for multiple linear systems. In the case where the coefficient matrix A is diagonalizable, we derive new upper bounds for the Frobenius norm of the residual. We also consider the case of normal matrices and we propose new expressions for the norm of the residual
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