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On a posteriori error bounds for approximations of the generalized Stokes problem generated by the Uzawa algorithm
Immanuel AnjamSergey RepinMarjaana Nokkasubject
a posteriori error estimatesNumerical AnalysisUzawa-algoritmiApproximations of πa posteriori virhe-estimaatitUzawa algorithmgeneralized Stokes problemModeling and SimulationCalculusStokes problemA priori and a posterioriApplied mathematicsyleistetty Stokesin yhtälöMathematicsdescription
In this paper, we derive computable a posteriori error bounds for approximations computed by the Uzawa algorithm for the generalized Stokes problem. We show that for each Uzawa iteration both the velocity error and the pressure error are bounded from above by a constant multiplied by the L2-norm of the divergence of the velocity. The derivation of the estimates essentially uses a posteriori estimates of the functional type for the Stokes problem. peerReviewed
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-01-01 |