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Information Technology Journal

Year: 2013 | Volume: 12 | Issue: 19 | Page No.: 5182-5185
DOI: 10.3923/itj.2013.5182.5185
Animproved Block Diagonal Preconditioners for Non-symmetric Indefinite Linear Systems
Litao Zhang and Xianyu Zuo

Abstract: Based on the block diagonal preconditioners by Cao in the study [Zhi-Hao Cao, A note on block diagonal and constraint preconditioners for non-symmetric indefinite linear systems, International Journal of Computer Mathematics, 83(4) (2006):383-395], we present a new block diagonal preconditioners for non-symmetric indefinite linear system. Moreover, we analyses the properties of the corresponding preconditioned matrices.

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Litao Zhang and Xianyu Zuo, 2013. Animproved Block Diagonal Preconditioners for Non-symmetric Indefinite Linear Systems. Information Technology Journal, 12: 5182-5185.

Keywords: Saddle point systems, preconditioners and eigenvalues

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