Block approximate inverse preconditioners for sparse nonsymmetric linear systems
type: Item
instance of: scholarly article
title: Block approximate inverse preconditioners for sparse nonsymmetric linear systems
zbMATH Open document ID: 1191.65023
author: B. E. Eshmatov
publication date: 2010-04-14T00:00:00Z
full work available at URL: https://eudml.org/doc/232615
full work available at URL: pp23-40.pdf
review text: The authors propose and theoretically analyze a preconditioning technique for block form partitioned matrices. The computation of preconditioners involves consecutive updates of variable rank of an initial and nonsingular matrix and the application of Sherman-Morrison-Woodbury formula to compute an approximate inverse decomposition of the updated matrices.
reviewed by: Constantin Popa
Mathematics Subject Classification ID: 65F08
Mathematics Subject Classification ID: 65F10
Mathematics Subject Classification ID: 65F50
zbMATH DE Number: 5692983
zbMATH Keywords: approximate inverse preconditioners
zbMATH Keywords: variable rank updates
zbMATH Keywords: block algorithms
zbMATH Keywords: Krylov iterative methods
zbMATH Keywords: Sherman-Morrison-Woodbury formula
describes a project that uses: SPARSKIT
MaRDI profile type: Publication
published in: ETNA - Electronic Transactions on Numerical Analysis
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description: scientific article; zbMATH DE number 5692983