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On the generalized Kato spectrum

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dc.contributor.author Benharrat, Mohammed
dc.contributor.author Messirdi, Bekkai
dc.date.accessioned 2019-06-20T09:08:55Z
dc.date.available 2019-06-20T09:08:55Z
dc.date.issued 2011
dc.identifier.uri http://e-biblio.univ-mosta.dz/handle/123456789/10995
dc.description.abstract We show that the symmetric difference between the generalized Kato spectrum and the essential spectrum defined in [7] by sec(T) = {l О C ; R(lI-T) is not closed } is at most countable and we also give some relationship between this spectrum and the SVEP theory. en_US
dc.publisher Serdica Mathematical Journal en_US
dc.subject Semi-regular operators en_US
dc.subject Kato type operators en_US
dc.subject generalized Kato spectrum en_US
dc.subject essen- tial spectrum en_US
dc.title On the generalized Kato spectrum en_US
dc.type Article en_US


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