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An Algebraic Analysis of a Block Diagonal Preconditioner for Saddle Point Systems

โœ Scribed by Golub, Gene H.; Greif, Chen; Varah, James M.

Book ID
118215329
Publisher
Society for Industrial and Applied Mathematics
Year
2005
Tongue
English
Weight
349 KB
Volume
27
Category
Article
ISSN
0895-4798

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๐Ÿ“œ SIMILAR VOLUMES

A comparison of overlapping Schwarz meth
A comparison of overlapping Schwarz methods and block preconditioners for saddle point problems
โœ Axel Klawonn; Luca F. Pavarino ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 230 KB

Three domain decomposition methods for saddle point problems are introduced and compared. The first two are blockdiagonal and block-triangular preconditioners with diagonal blocks approximated by an overlapping Schwarz technique with positive definite local and coarse problems. The third is an overl