The (2,2,0) group inverse problem
We characterize the existence of the group inverse of a two by two matrix with zero (2,2) entry, over a ring by means of the existence of the inverse of a suitable function of the other three entries. Some special cases are derived.
| Autor principal: | |
|---|---|
| Outros Autores: | |
| Formato: | article |
| Idioma: | eng |
| Publicado em: |
2010
|
| Assuntos: | |
| Texto completo: | http://hdl.handle.net/1822/11403 |
| País: | Portugal |
| Oai: | oai:repositorium.sdum.uminho.pt:1822/11403 |
| Resumo: | We characterize the existence of the group inverse of a two by two matrix with zero (2,2) entry, over a ring by means of the existence of the inverse of a suitable function of the other three entries. Some special cases are derived. |
|---|