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https://hdl.handle.net/10316/4637| Title: | Drazin invertibility for matrices over an arbitrary ring | Authors: | Puystjens, R. Gouveia, M. C. |
Keywords: | Drazin invertibility; Group invertibility; Companion matrix | Issue Date: | 2004 | Citation: | Linear Algebra and its Applications. 385:(2004) 105-116 | Abstract: | Characterizations are given for existence of the Drazin inverse of a matrix over an arbitrary ring. Moreover, the Drazin inverse of a product PAQ for which there exist a P' and Q' such that P'PA=A=AQQ' can be characterized and computed. This generalizes recent results obtained for the group inverse of such products. | URI: | https://hdl.handle.net/10316/4637 | DOI: | 10.1016/S0024-3795(03)00618-9 | Rights: | openAccess |
| Appears in Collections: | FCTUC Matemática - Artigos em Revistas Internacionais |
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| file50350850af8e40e096fd9a394d4ba38b.pdf | 190.25 kB | Adobe PDF | View/Open |
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