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math.NA2020
Learned infinite elements
Thorsten Hohage, Christoph Lehrenfeld, Janosch Preuss
We study the numerical solution of scalar time-harmonic wave equations on unbounded domains which can be split into a bounded interior domain of primary interest and an exterior do…
math.NA2020
Sweeping preconditioners for stratified media in the presence of reflections
Janosch Preuß, Thorsten Hohage, Christoph Lehrenfeld
In this paper we consider sweeping preconditioners for time harmonic wave propagation in stratified media, especially in the presence of reflections. In the most famous class of sw…