A Twisted Block Tangential Filtering Decomposition Preconditioner

Ruirui Wang, Qiang Niu and Linzhang Lu

Mathematical Problems in Engineering, 2009, vol. 2009, 1-13

Abstract:

For block-tridiagonal linear system of equations, a variant of tangential filtering preconditioners is proposed in this paper. The new variant is based on a twisted block factorization along with certain filtering property. For practical usage, a class of composite preconditioners tested, which are constructed by combining the twisted tangential filtering decomposition preconditioner with the classical preconditioner in a multiplicative way. The performance of the new preconditioners is compared with other classical preconditioners; the superiority and the weakness of the preconditioners are pointed out.

Date: 2009
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:282307

DOI: 10.1155/2009/282307

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