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A Twisted Block Tangential Filtering Decomposition Preconditioner

Author

Listed:
  • Ruirui Wang
  • Qiang Niu
  • Linzhang Lu

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.

Suggested Citation

  • Ruirui Wang & Qiang Niu & Linzhang Lu, 2009. "A Twisted Block Tangential Filtering Decomposition Preconditioner," Mathematical Problems in Engineering, Hindawi, vol. 2009, pages 1-13, June.
    • Handle: RePEc:hin:jnlmpe:282307
    DOI: 10.1155/2009/282307
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