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A fast convergent iterative solver for approximate inverse of matrices

โœ Scribed by Soleymani, F.


Book ID
120492569
Publisher
John Wiley and Sons
Year
2013
Tongue
English
Weight
325 KB
Volume
21
Category
Article
ISSN
1070-5325

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โœ Eun-Joo Lee; Jun Zhang ๐Ÿ“‚ Article ๐Ÿ“… 2009 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 445 KB

A two-phase preconditioning strategy based on a factored sparse approximate inverse is proposed for solving sparse indefinite matrices. In each phase, the strategy first makes the original matrix diagonally dominant to enhance the stability by a shifting method, and constructs an inverse approximati