A fast spectral subtractional solver for elliptic equations

DOI10.1023/B:JOMP.0000027957.39059.6bzbMath1062.65124OpenAlexW1974982401MaRDI QIDQ702445

Boris Epstein, Moshe Israeli, Elena Braverman, Amir Z. Averbuch

Publication date: 17 January 2005

Published in: Journal of Scientific Computing (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1023/b:jomp.0000027957.39059.6b

zbMATH Keywords

convergencenumerical exampleselliptic equationscollocationPoisson equationcomplex geometrieseigenfunction expansionmodified Helmholtz equationFast spectral direct solvermodified Fourier methodpreconditioned iterative algorithm

Mathematics Subject Classification ID

Spectral, collocation and related methods for boundary value problems involving PDEs (65N35) Stability and convergence of numerical methods for boundary value problems involving PDEs (65N12) Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation (35J05)

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