Projection-minimization methods for nonsymmetric linear systems
โ Scribed by Khalide Jbilou
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 859 KB
- Volume
- 229
- Category
- Article
- ISSN
- 0024-3795
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๐ SIMILAR VOLUMES
The subject of this paper is to study the performance of multilevel preconditioning for nonsymmetric elliptic boundary value problems. In particular, a minimal residual method with respect to an appropriately scaled norm, measuring the size of the residual projections on all levels, is studied. This
The performance of Stiefel's conjugate gradient (CG) method and a reformulated three-parameter C G are compared for structural analysis problems having varying condition numbers. It has been found that diagonal preconditioning in the three-parameter C G method is efficient when high condition number