Abstract
A novel heuristic residual analysis is proposed to derive a computationally cost-effective residual projection operator in multigrid with the five-point Red-Black Gauss-Seidel relaxation for solving the two-dimensional Poisson equation. This optimal residual injection operator is as cheap as the trivial injection operator, but is more efficient than the costly full-weighting operator and achieves near-optimal convergence rate.
Original language | English |
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Pages (from-to) | 325-333 |
Number of pages | 9 |
Journal | Journal of Computational and Applied Mathematics |
Volume | 76 |
Issue number | 1-2 |
DOIs | |
State | Published - Dec 17 1996 |
Bibliographical note
Copyright:Copyright 2018 Elsevier B.V., All rights reserved.
Keywords
- Multigrid method
- Poisson equation
- Red-Black Gauss-Seidel
- Residual projection
ASJC Scopus subject areas
- Computational Mathematics
- Applied Mathematics