Title of article
Nested grids ILU-decomposition (NGILU)
Author/Authors
van der Ploeg، نويسنده , , A. and Botta، نويسنده , , E.F.F. and Wubs، نويسنده , , F.W.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1996
Pages
12
From page
515
To page
526
Abstract
A preconditioning technique is described which shows, in many cases, grid-independent convergence. This technique only requires an ordering of the unknowns based on the different levels of multigrid, and an incomplete LU-decomposition based on a drop tolerance. The method is demonstrated on a variety of well-known elliptic test problems including strongly varying coefficients, advective terms and grid refinement.
Keywords
Incomplete decomposition , Multilevel methods , Conjugate gradients , Preconditioning , Finite differences
Journal title
Journal of Computational and Applied Mathematics
Serial Year
1996
Journal title
Journal of Computational and Applied Mathematics
Record number
1546811
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