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Generalized circulant Strang-type preconditioners

โœ Scribed by Silvia Noschese; Lothar Reichel


Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
136 KB
Volume
19
Category
Article
ISSN
1070-5325

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Generalization of Strang's Preconditione
โœ Raymond H. Chan; Michael K. Ng; Robert J. Plemmons ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 969 KB

In this paper, we propose a method to generalize Strang's circulant preconditioner for arbitrary n-by-n matrices A,,. The 181th column of our circulant preconditioner S,, is equal to the 151 th column of the given matrix A,,. Thus if A,, is a square Toeplitz matrix, then S,, is just the Strang circu