A fast direct method for solving a variational-difference analogue of the Poisson equation on a triangulation with condensation toward a part of the boundary

zbMath0946.65106MaRDI QIDQ1569254

O. V. Ryabinin

Publication date: 29 June 2000

Published in: Computational Mathematics and Mathematical Physics (Search for Journal in Brave)

zbMATH Keywords

triangulationfast Fourier transformPoisson equationfast direct methodvariational-difference Dirichlet problem

Mathematics Subject Classification ID

Error bounds for boundary value problems involving PDEs (65N15) Finite element, Rayleigh-Ritz and Galerkin methods for boundary value problems involving PDEs (65N30) Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation (35J05) Numerical methods for discrete and fast Fourier transforms (65T50) Mesh generation, refinement, and adaptive methods for boundary value problems involving PDEs (65N50)

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