An implicit hybridized discontinuous Galerkin method for time-domain Maxwell's equations

Abstract : Discontinuous Galerkin (DG) methods have been the subject of numerous research activities in the last 15 years and have been successfully developed for various physical contexts modeled by elliptic, mixed hyperbolic-parabolic and hyperbolic systems of PDEs. One major drawback of high order DG methods is their intrinsic cost due to the very large number of globally coupled degrees of freedom as compared to classical high order conforming finite element methods. Different attempts have been made in the recent past to improve this situation and one promising strategy has been recently proposed by Cockburn (Cockburn et al., 2009) in the form of so-called hybridizable DG formulations. The distinctive feature of these methods is that the only globally coupled degrees of freedom are those of an approximation of the solution defined only on the boundaries of the elements of the discretization mesh. The present work is concerned with the study of such a hybridizable DG method for the solution of the system of Maxwell equations. In this preliminary investigation, a hybridizable DG method is proposed for the two-dimensional time-domain Maxwell equations time integrated by an implicit scheme.
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[Research Report] RR-7578, INRIA. 2011, pp.20
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Stephane Lanteri, Ronan Perrussel. An implicit hybridized discontinuous Galerkin method for time-domain Maxwell's equations. [Research Report] RR-7578, INRIA. 2011, pp.20. 〈inria-00578488v3〉

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