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Published in 2019 at "Calcolo"
DOI: 10.1007/s10092-019-0346-z
Abstract: AbstractWe study the acoustic Helmholtz equation with impedance boundary conditions formulated in terms of velocity, and analyze the stability and convergence properties of lowest-order Raviart-Thomas finite element discretizations. We focus on the high-wavenumber regime, where…
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Keywords:
acoustic helmholtz;
finite element;
stability;
mixed finite ... See more keywords