Theoretical and numerical considerations about Padé approximants for the matrix logarithm
We show that for a vast class of matrix Lie groups, which includes the orthogonal and the symplectic, diagonal Padé approximants of log((1+x)/(1-x)) are structure preserving. The conditioning of these approximants is analyzed. We also present a new algorithm for the Briggs-Padé method, based on a st...
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | article |
| Language: | eng |
| Published: |
2001
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/10316/4648 |
| Country: | Portugal |
| Oai: | oai:estudogeral.sib.uc.pt:10316/4648 |