A cost-effective multigrid projection operator

Jun Zhang

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

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 languageEnglish
Pages (from-to)325-333
Number of pages9
JournalJournal of Computational and Applied Mathematics
Volume76
Issue number1-2
DOIs
StatePublished - 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

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