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...
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| Formato: | article |
| Idioma: | eng |
| Publicado em: |
2001
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| Texto completo: | http://hdl.handle.net/10316/4648 |
| País: | Portugal |
| Oai: | oai:estudogeral.sib.uc.pt:10316/4648 |