How to compute the optimal parameters of the parameterized PMHSS preconditioner? (Q1726421)
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: How to compute the optimal parameters of the parameterized PMHSS preconditioner? |
scientific article; zbMATH DE number 7025970
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | How to compute the optimal parameters of the parameterized PMHSS preconditioner? |
scientific article; zbMATH DE number 7025970 |
Statements
How to compute the optimal parameters of the parameterized PMHSS preconditioner? (English)
0 references
20 February 2019
0 references
A parameterized PMHSS (P2MHSS) preconditioner for a class of block two-by-two systems of linear equations is proposed. It is based on the preconditioned modified Hermitian and skew-Hermitian splitting (PMHSS) iteration method and its alternating-directional variant. Practical formulas for computing the optimal parameters of the P2MHSS preconditioner are derived by employing the scaled norm minimization method. The result from a numerical experiment is also presented.
0 references
PMHSS method
0 references
block two-by-two system
0 references
P2MHSS preconditioner
0 references
optimal parameters
0 references
0 references
0 references
0 references
0 references
0 references
0.83311737
0 references
0 references
0.8286273
0 references
0.82647234
0 references
0.8263912
0 references
0.8261406
0 references
0.82433474
0 references
0.8239774
0 references
0.82345146
0 references
