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

Benharrat, Mohammed; Ammar, Aymen; Jeribi, Aref; Messirdi, Bekkai

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