Circulant matrix methods for the numerical solution of partial differential equations by FFT convolutions

DOI10.1016/0307-904X(88)90022-4zbMath0645.65065MaRDI QIDQ1103351

A. E. Gilmour

Publication date: 1988

Published in: Applied Mathematical Modelling (Search for Journal in Brave)

zbMATH Keywords

fast Fourier transformsLaplace equationfinite difference methodscirculant matrix techniquescirculant meshesirregularly shaped boundaries

Mathematics Subject Classification ID

Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation (35J05) Numerical methods for trigonometric approximation and interpolation (65T40) 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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