2023
DOI: 10.31642/jokmc/2018/100113
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Perturbations of Weyl’s Theorems for Unbounded Class-A Operators

Dalia Sami

Abstract: The significance of Weyl's spectrum is regional to the perturbation theory but recently it is related to operator theory in some theorems. The study of Weyl’s theorem has so far limited to the class of bounded operators, however, lately this study has been extended to some classes of unbounded operators such as hypanormal, posinormal and class- operators. The aim of this article is to continue study more spectral properties for class-  operators. First, we use property  to study property (b) and then show the… Show more

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Cited by 1 publication
(2 citation statements)
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“…The layouts is a place polarization from Ḍ ϥ+ҝ The characteristic zero complex in the event of a partitioning (2, 2, 2) were also conducted a survey either by reviewers through [1], [2], [3], [5], [6] and [7]. Feature the characteristic '0' complex as shown in illustration event of some partitioning in [8].…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…The layouts is a place polarization from Ḍ ϥ+ҝ The characteristic zero complex in the event of a partitioning (2, 2, 2) were also conducted a survey either by reviewers through [1], [2], [3], [5], [6] and [7]. Feature the characteristic '0' complex as shown in illustration event of some partitioning in [8].…”
Section: Introductionmentioning
confidence: 99%
“…Feature the characteristic '0' complex as shown in illustration event of some partitioning in [8]. [9] features the concepts and the precision of either the Weyl resolution in the case of partition (8,7) and (8,7,3).…”
Section: Introductionmentioning
confidence: 99%