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HMG -- Homogeneous multigrid for HDG
Published 27 Nov 2020 in math.NA and cs.NA | (2011.14018v1)
Abstract: We introduce a homogeneous multigrid method in the sense that it uses the same HDG discretization scheme for Poisson's equation on all levels. In particular, we construct a stable injection operator and prove optimal convergence of the method under the assumption of elliptic regularity. Numerical experiments underline our analytical findings.
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