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Hybrid discontinuous Galerkin discretizations for the damped time-harmonic Galbrun's equation
In this article, we consider the damped time-harmonic Galbrun’s equation which models solar and stellar oscillations. We …
Martin Halla, Christoph Lehrenfeld, Tim van Beeck
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Analysis and numerical analysis of the Helmholtz-Korteweg equation
We analyze the Helmholtz–Korteweg and nematic Helmholtz–Korteweg equations, variants of the classical Helmholtz equation …
Patrick E. Farrell, Tim van Beeck, Umberto Zerbinati
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An adaptive mesh refinement strategy to ensure quasi-optimality of finite element methods for self-adjoint Helmholtz problems
It is well known that the quasi-optimality of the Galerkin finite element method for the Helmholtz equation is dependent on the mesh …
Tim van Beeck, Umberto Zerbinati
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Analysis of divergence-preserving unfitted finite element methods for the mixed Poisson problem
In this paper we present a new H(div)-conforming unfitted finite element method for the mixed Poisson problem which is robust in the …
Christoph Lehrenfeld, Tim van Beeck, Igor Voulis
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