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Type: Artigo de periódico
Title: Nonnested multigrid methods for linear problems
Author: Bittencourt, ML
Douglas, CC
Feijoo, RA
Abstract: This article presents an application of nonnested and unstructured multigrid methods to linear elastic problems. A variational formulation for transfer operators and some multigrid strategies, including adaptive algorithms, are presented. Expressions for the performance evaluation of multigrid strategies and its comparison with direct and preconditioned conjugate gradient algorithms are also presented. A C++ implementation of the multigrid algorithms and the quadtree and octree data structures for transfer operators are discussed. Some two- and three-dimensional elasticity examples are analyzed. (C) 2001 John Wiley & Sons, Inc.
Subject: multigrid methods
elasticity problems
unstructured mesh
C plus
Country: EUA
Editor: John Wiley & Sons Inc
Rights: fechado
Identifier DOI: 10.1002/num.1013
Date Issue: 2001
Appears in Collections:Unicamp - Artigos e Outros Documentos

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