The influence of isolated largest eigenvalues on the numerical convergence of the CG method

zbMath0960.65040MaRDI QIDQ1591896

A. Yu. Yeremin, Igor E. Kaporin

Publication date: 17 January 2001

Published in: Journal of Mathematical Sciences (New York) (Search for Journal in Brave)

zbMATH Keywords

convergencepreconditioningconjugate gradient methodill-conditioned linear systemslargest eigenvaluessymmetric positive-definite matrixsmallest Ritz values

Mathematics Subject Classification ID

Numerical computation of eigenvalues and eigenvectors of matrices (65F15) Ill-posedness and regularization problems in numerical linear algebra (65F22) Numerical computation of matrix norms, conditioning, scaling (65F35)

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