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On the Kato, semi-regular and essentially semi-regular spectra

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dc.contributor.author Benharrat, Mohammed
dc.contributor.author Ammar, Aymen
dc.contributor.author Jeribi, Aref
dc.contributor.author Messirdi, Bekkai
dc.date.accessioned 2019-06-20T08:59:33Z
dc.date.available 2019-06-20T08:59:33Z
dc.date.issued 2015-02-16
dc.identifier.uri http://e-biblio.univ-mosta.dz/handle/123456789/10992
dc.description.abstract In this paper, we give some properties of the semi-regular, essentially semi-regular and the operators of Kato type on a Banach space. We also show that the essentially semi-regular spectrum of closed, densely defined linear operator is stable under commuting compact perturbation and its Kato spectrum is stable subjected to additive commuting nilpotent perturbations. en_US
dc.publisher Functional Analysis, Approximation and Computation en_US
dc.subject Semi-regular operators en_US
dc.subject Kato type operators en_US
dc.subject Essential spectrum en_US
dc.subject Kato spectrum en_US
dc.subject Nilpotent operators en_US
dc.title On the Kato, semi-regular and essentially semi-regular spectra en_US
dc.type Article en_US


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