A fast Fourier transform based direct solver for the Helmholtz problem
DOI10.1002/NLA.2283arXiv1809.03808WikidataQ109284857 ScholiaQ109284857MaRDI QIDQ6306552
Jari Toivanen, Monika Wolfmayr
Publication date: 11 September 2018
Boundary value problems for second-order elliptic equations (35J25) Finite element, Rayleigh-Ritz and Galerkin methods for boundary value problems involving PDEs (65N30) Theoretical approximation in context of PDEs (35A35) Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation (35J05) Numerical methods for discrete and fast Fourier transforms (65T50) Fourier and Fourier-Stieltjes transforms and other transforms of Fourier type (42A38) Direct numerical methods for linear systems and matrix inversion (65F05) Numerical solution of discretized equations for boundary value problems involving PDEs (65N22)
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