A simple and efficient optimization scheme for second-order Whitney elements using appropriate material-dependent geometric transformations is introduced. A remarkable improvement of convergence is observed, especially when it comes to ill-conditioned linear systems. Such a scheme can be considered a kind of geometric preconditioning that not only provides an optimally-conditioned approximation but is also open to further improvements.
|Original language||English (US)|
|Number of pages||4|
|Journal||IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)|
|State||Published - Jan 1 2002|
ASJC Scopus subject areas
- Electrical and Electronic Engineering