• Title/Summary/Keyword: modified incomplete Cholesky factorization factorization

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MODIFLED INCOMPLETE CHOLESKY FACTORIZATION PRECONDITIONERS FOR A SYMMETRIC POSITIVE DEFINITE MATRIX

  • Yun, Jae-Heon;Han, Yu-Du
    • Bulletin of the Korean Mathematical Society
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    • v.39 no.3
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    • pp.495-509
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    • 2002
  • We propose variants of the modified incomplete Cho1esky factorization preconditioner for a symmetric positive definite (SPD) matrix. Spectral properties of these preconditioners are discussed, and then numerical results of the preconditioned CG (PCG) method using these preconditioners are provided to see the effectiveness of the preconditioners.