Multiplicative Overlapping Schwarz Smoothers for Hdiv-Conforming Discontinuous Galerkin Methods for the Stokes Problem
We present numerical results for a multigrid method employing overlapping Schwarz smoothers in various V-cycle configurations. The method is based on finite element discretizations of the Stokes problem employing Hdiv-conforming velocity spaces and matching pressure spaces. The method acts on the combined velocity and pressure spaces and thus does not need a Schur complement approximation.
KeywordsDiscontinuous Galerkin methods Divergence-conforming Multigrid Overlapping Schwarz Smoother
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