Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4623992 | Journal of Mathematical Analysis and Applications | 2006 | 8 Pages |
Abstract
Using a variant of the essential approximate point spectrum, we give the necessary and sufficient conditions for T for which the a-Browder's theorem or the a-Weyl's theorem holds. Also, the relation between hypercyclic operators (or supercyclic operators) and the operators which satisfy Weyl type theorem is discussed.
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