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.
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| Format: | article |
| Language: | eng |
| Published: |
2010
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| Online Access: | http://hdl.handle.net/1822/11403 |
| Country: | Portugal |
| Oai: | oai:repositorium.sdum.uminho.pt:1822/11403 |