A wideband fast multipole algorithm for two-dimensional volume integral equations
β Scribed by N. Nakashima; M. Tateiba
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 483 KB
- Volume
- 77
- Category
- Article
- ISSN
- 0029-5981
- DOI
- 10.1002/nme.2409
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## Abstract Conventional fast multipole algorithm is one of the most widely used integral equation method for its high efficiency. Unfortunately, it always come across a problem named subwavelength breakdown when the finest group size is smaller than 0.2 wavelength. In this article, singular value
A multigrid scheme naturally contained in wa¨elet expansion methods is presented. Careful examination of the wa¨elet matrix re¨eals matrix representations of an integral operator at ¨arious coarse le¨els that can be identified as nested submatrices of the original wa¨elet matrix at the finest le¨el.