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Drazin invertibility of sum and product of closed linear operators
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| dc.contributor.author | MESSIRD, Bekkai | |
| dc.contributor.author | MESSIRDI, Sanaa | |
| dc.contributor.author | MESSIRDI, Miloud | |
| dc.date.accessioned | 2019-06-24T10:28:52Z | |
| dc.date.available | 2019-06-24T10:28:52Z | |
| dc.date.issued | 2014 | |
| dc.identifier.uri | http://e-biblio.univ-mosta.dz/handle/123456789/11102 | |
| dc.description.abstract | The paper present a survey of results concerning the fundamental properties of the Drazin inverse for bounded operators and an interesting study of the Drazin inverse for a closed operator in a Banach space. Some necessary and sufficient conditions for A closed linear operator to possess a Drazin inverse AD are given, we obtain also a useful caracterization and explicit formula for the Drazin inverse (A+ B) D and (AB) D if A and B are closed operators. | en_US |
| dc.publisher | Malaya Journal of Matematik | en_US |
| dc.title | Drazin invertibility of sum and product of closed linear operators | en_US |
| dc.type | Article | en_US |
