Astrid Pechstein

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We present hybrid finite element methods, which are equivalent to a discontinuous Galerkin method based on the ultra weak variational formulation (UWVF) by Cessenat and Despres. When solving a scalar or vectorial wave equation with hybrid finite elements, normal and tangential continuity of the flux field, respectively, is broken across element interfaces(More)
In this article, we consider a hybridized tangential-displacement normal-normalstress (TDNNS) discretization of linear elasticity. As shown in earlier work by Joachim Schöberl and the first author, TDNNS is a stable finite element discretization that does not suffers from volume locking. We propose a finite element tearing and interconnecting (FETI) method(More)
In this article, we consider a hybridized tangential-displacement normal-normalstress (TDNNS) discretization of linear elasticity. As shown in earlier work by Joachim Schöberl and the first author, TDNNS is a stable finite element discretization that does not suffers from volume locking. We propose a finite element tearing and interconnecting (FETI) method(More)
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