Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
521427 | Journal of Computational Physics | 2006 | 11 Pages |
Abstract
A method is presented for the rapid evaluation of electro-static interactions in a dielectric medium containing inclusions with different dielectric properties. The principal observation is that in environments where several potential evaluations are required for a fixed geometry, it is advantageous to precompute compressed representations of the inverses of certain operators. Numerical examples in two dimensions show a speed-up of a factor of 10–100 when compared to the fastest existing methods. Moreover, the method presented is based on direct (as opposed to iterative) techniques, making it preferable to existing methods in environments involving ill-conditioned problems.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Science Applications
Authors
Per-Gunnar Martinsson,