2016.5: Refined saddle-point preconditioners for discretized Stokes problems
2016.5: John Pearson, Jennifer Pestana and David Silvester (2016) Refined saddle-point preconditioners for discretized Stokes problems.
Full text available as:
|PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader|
This paper is concerned with the implementation of efficient solution algorithms for elliptic problems with constraints. We establish theory that shows that including a simple scaling within well-established block diagonal preconditioners for Stokes problems can result in significantly faster convergence when applying the preconditioned MINRES method. The codes used in the numerical studies are available online.
|Item Type:||MIMS Preprint|
|Uncontrolled Keywords:||Stokes equations, stabilization, saddle-point systems, preconditioning, inf-sup condition|
|Subjects:||MSC 2000 > 65 Numerical analysis|
|Deposited By:||professor david silvester|
|Deposited On:||26 January 2016|