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Exponential decay of high-order spurious prolate spheroidal modes induced by a local approximate dtn exterior boundary condition
We investigate analytically the asymptotic behavior of high-order spurious prolate spheroidal modes induced by a second-order local approximate DtN absorbing boundary condition (DtN2) when employed for solving high-frequency ...
A modified discontinuous Galerkin method for solving efficiently Helmholtz problems
A new solution methodology is proposed for solving efficiently Helmholtz problems. The proposed method falls in the category of the discontinuous Galerkin methods. However, unlike the existing solution methodologies, this ...