Papers › Unique continuation for the Helmholtz equation using stabilized finite element methods
Unique continuation for the Helmholtz equation using stabilized finite element methods
Erik Burman, Mihai Nechita, Lauri Oksanen
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In this work we consider the computational approximation of a unique continuation problem for the Helmholtz equation using a stabilized finite element method. First conditional stability estimates are derived for which, under a convexity assumption on the geometry, the constants grow at most linearly in the wave number. Then these estimates are used to obtain error bounds for the finite element method that are explicit with respect to the wave number. Some numerical illustrations are given.
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