A simple and efficient FFT-based fast direct solver for Poisson-type equations on 3D cylindrical and spherical geometries is presented. The solver relies on the truncated Fourier series expansion, where the differential equations of Fourier coefficients are solved using second-order finite difference discretizations without pole conditions. Three different… (More)

Fishpack—A package of Fortran subprograms for the solution of seperable elliptic partial differential equations. Available at http://www.netlib.org/fishpack

J. ADAMS, P. SWARZTRAUBER, R. SWEET

1980

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A direct spectral collocation Poisson solver in polar and cylindrical coordinates