A twisted block tangential filtering decomposition preconditioner

Ruirui Wang, Qiang Niu, Linzhang Lu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


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 I L U (0) 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.

Original languageEnglish
Article number282307
JournalMathematical Problems in Engineering
Publication statusPublished - 2009
Externally publishedYes


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