A fast Poisson solver
โ Scribed by A. Onana; S. Y. Kwankam; E. Zoue
- Publisher
- Springer Netherlands
- Year
- 1994
- Tongue
- English
- Weight
- 411 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0031-5303
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๐ SIMILAR VOLUMES
Robust fast solvers for the Poisson equation have generally been limited to regular geometries, where direct methods, based on Fourier analysis or cyclic reduction, and multigrid methods can be used. While multigrid methods can be applied in irregular domains land to a broader class of partial diffe
We present a direct solver for the Poisson and Laplace equations in a 3D rectangular box. The method is based on the application of the discrete Fourier transform accompanied by a subtraction technique which allows reducing the errors associated with the Gibbs phenomenon and achieving any prescribed