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Proceedings Paper

Fast Poisson solvers on nonequispaced grids: multigrid and Fourier methods compared
Author(s): Gisela Poeplau; Daniel Potts
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Paper Abstract

The solution of partial differential equations on adaptively generated grids play an important role in scienti£c computation. In this paper we compare two Poisson solvers for data on nonequispaced mesh points. A new meshless Fourier method based on NFFT is constructed in R3. This algorithm is compared to the well-established multigrid method working on nonequidistant meshes. Our investigations are motivated especially by simulations of the behaviour of charged particles in accelerators.

Paper Details

Date Published: 24 December 2003
PDF: 8 pages
Proc. SPIE 5205, Advanced Signal Processing Algorithms, Architectures, and Implementations XIII, (24 December 2003); doi: 10.1117/12.503390
Show Author Affiliations
Gisela Poeplau, Rostock Univ. (Germany)
Daniel Potts, Univ. zu Luebeck (Germany)

Published in SPIE Proceedings Vol. 5205:
Advanced Signal Processing Algorithms, Architectures, and Implementations XIII
Franklin T. Luk, Editor(s)

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