An efficient spectral-projection method for the Navier--Stokes equations in cylindrical geometries
Journal of Computational Physics
Journal of Computational Physics
Spectral collocation schemes on the unit disc
Journal of Computational Physics
A fast iterative solver for the variable coefficient diffusion equation on a disk
Journal of Computational Physics
Journal of Computational Physics
An efficient direct parallel spectral-element solver for separable elliptic problems
Journal of Computational Physics
Spectral radial basis functions for full sphere computations
Journal of Computational Physics
Journal of Computational Physics
Efficient spectral-Galerkin methods for polar and cylindrical geometries
Applied Numerical Mathematics
Combinations of collocation and finite-element methods for Poisson's equation
Computers & Mathematics with Applications
Brinkman equation for a corrugated pipe using a spectral-Galerkin method
Computers & Mathematics with Applications
Journal of Computational Physics
Matrix decomposition algorithms for elliptic boundary value problems: a survey
Numerical Algorithms
A Fourier-Legendre spectral element method in polar coordinates
Journal of Computational Physics
Journal of Computational Physics
Journal of Computational Physics
A Spectral-Element Method for Transmission Eigenvalue Problems
Journal of Scientific Computing
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We present in this paper several extremely efficient and accurate spectral-Galerkin methods for second- and fourth-order equations in polar and cylindrical geometries. These methods are based on appropriate variational formulations which incorporate naturally the pole condition(s). In particular, the computational complexities of the Chebyshev--Galerkin method in a disk and the Chebyshev--Legendre--Galerkin method in a disk or a cylinder are quasi-optimal (optimal up to a logarithmic term). As an indication of efficiency, the CPU time for the Poisson solver on a disk by our Chebyshev--Galerkin method is only about 70% of the corresponding finite-difference code in FISHPACK.