A new Bramble-Pasciak-like preconditioner for saddle point problems (Q1940966)
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: A new Bramble-Pasciak-like preconditioner for saddle point problems |
scientific article; zbMATH DE number 6143098
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | A new Bramble-Pasciak-like preconditioner for saddle point problems |
scientific article; zbMATH DE number 6143098 |
Statements
A new Bramble-Pasciak-like preconditioner for saddle point problems (English)
0 references
11 March 2013
0 references
The authors propose a new Bramble-Pasciak-like preconditioner with parameter for solving linear systems in the saddle-point form. It is based on the construction of an appropriate scalar product for which the system matrix becomes symmetric and positive definite. Then, the Bramble-Pasciak conjugate gradient solver is used, together with a strategy of choosing quasi-optimal parameters.
0 references
saddle point problems
0 references
Bramble-Pasciak-like preconditioner
0 references
Bramble-Pasciak conjugate gradient method
0 references
spectral condition number
0 references
convergence rate
0 references
