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- W3036705560 abstract "In this paper we present a geometric multigrid method with Jacobi and Vanka relaxation for hybridized and embedded discontinuous Galerkin discretizations of the Laplacian. We present a local Fourier analysis (LFA) of the two-grid error-propagation operator and show that the multigrid method applied to an embedded discontinuous Galerkin (EDG) discretization is almost as efficient as when applied to a continuous Galerkin discretization. We furthermore show that multigrid applied to an EDG discretization outperforms multigrid applied to a hybridized discontinuous Galerkin (HDG) discretization. Numerical examples verify our LFA predictions." @default.
- W3036705560 created "2020-06-25" @default.
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- W3036705560 date "2020-06-19" @default.
- W3036705560 modified "2023-09-23" @default.
- W3036705560 title "Local Fourier analysis of multigrid for hybridized and embedded discontinuous Galerkin methods" @default.
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- W3036705560 doi "https://doi.org/10.48550/arxiv.2006.11433" @default.
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