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math.NA2023
Convergence analysis of nonconform -finite elements for the damped time-harmonic Galbrun's equation
Martin Halla
We consider the damped time-harmonic Galbrun's equation, which is used to model stellar oscillations. We introduce a discontinuous Galerkin finite element method (DGFEM) with $H(\o…
math.AP2023
On the analysis of waveguide modes in an electromagnetic transmission line
Martin Halla, Peter Monk
Modal expansions are useful to understand wave propagation in an infinite electromagnetic transmission line or waveguide. They can also be used to construct generalized Dirichlet-t…