Look-Ahead Procedures for Lanczos-Type Product Methods Based on Three-Term Lanczos Recurrences

DOI10.1137/S0895479896306744zbMath0961.65025OpenAlexW2074429407MaRDI QIDQ4509603

Klaus J. Ressel, Martin H. Gutknecht

Publication date: 19 October 2000

Published in: SIAM Journal on Matrix Analysis and Applications (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1137/s0895479896306744

zbMATH Keywords

performancealgorithmsnumerical examplesiterative methodssparse linear systemsroundoff errorsnon-Hermitian matriceslook-aheadLanczos-type product methods

Mathematics Subject Classification ID

Computational methods for sparse matrices (65F50) Iterative numerical methods for linear systems (65F10) Complexity and performance of numerical algorithms (65Y20)

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Uses Software

• BiCGstab
• GpBiCg
• CGS
• na5