On semi-convergence of parameterized Uzawa methods for singular saddle point problems (Q1030743)
From MaRDI portal
 | This is the item page for this Wikibase entity, intended for internal use and editing purposes. Please use this page instead for the normal view: On semi-convergence of parameterized Uzawa methods for singular saddle point problems |
scientific article; zbMATH DE number 5574565
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | On semi-convergence of parameterized Uzawa methods for singular saddle point problems |
scientific article; zbMATH DE number 5574565 |
Statements
On semi-convergence of parameterized Uzawa methods for singular saddle point problems (English)
0 references
2 July 2009
0 references
In a recent work \textit{Z.-Z. Bai, B. N. Parlett, Z.-Q. Wang} [Numer. Math. 102, No.~1, 1--38 (2005; Zbl 1083.65034)] had presented an efficient parametrised Uzawa algorithm for the nonsingular saddle problem was presented. In this paper the authors prove semi-convergence of this methods under mild constraints on the iteration parameters. Optimal parameters are computed and numerical results are shown.
0 references
Saddle point problems
0 references
Parametrized Uzawa algorithm
0 references
optimal iteration parameters
0 references
singular matrix
0 references
semi-convergence factor
0 references
numerical results
0 references
0 references
0 references
0 references
0 references
0 references
