| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4641424 | Journal of Computational and Applied Mathematics | 2009 | 19 Pages |
Abstract
The parameterized Uzawa preconditioners for saddle point problems are studied in this paper. The eigenvalues of the preconditioned matrix are located in (0, 2) by choosing the suitable parameters. Furthermore, we give two strategies to optimize the rate of convergence by finding the suitable values of parameters. Numerical computations show that the parameterized Uzawa preconditioners can lead to practical and effective preconditioned GMRES methods for solving the saddle point problems.
Related Topics
Physical Sciences and Engineering
Mathematics
Applied Mathematics
Authors
Zeng-Qi Wang,