2-LEVEL ADDITIVE SCHWARZ PRECONDITIONERS FOR P1 NONCONFORMING FINITE-ELEMENTS FOR NONSYMMETRIC AND INDEFINITE PROBLEMS

Authors
YON YJ KWAK DY
Citation
Yj. Yon et Dy. Kwak, 2-LEVEL ADDITIVE SCHWARZ PRECONDITIONERS FOR P1 NONCONFORMING FINITE-ELEMENTS FOR NONSYMMETRIC AND INDEFINITE PROBLEMS, Applied mathematics and computation, 87(1), 1997, pp. 1-14
Citations number
10
Categorie Soggetti
Mathematics,Mathematics
Journal title
Applied mathematics and computation → ACNP
ISSN journal
00963003
Volume
87
Issue
1
Year of publication
1997
Pages
1 - 14
Database
ISI
SICI code
0096-3003(1997)87:1<1:2ASPFP>2.0.ZU;2-6
Abstract
Two-level additive Schwarz preconditioners are developed for P1 noncon forming finite element approximation of second-order nonsymmetric and indefinite elliptic problems. The convergence factor is shown to be in dependent of the number of subspaces when this preconditioner is used with GMRES method. (C) Elsevier Science Inc., 1997.