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Variations on Browder’s theorem. (English) Zbl 1299.47014
Three new spectral properties of bounded linear operators on a complex Banach space are defined and studied in this paper. These properties are connected with the Browder spectrum of an operator. The presented research is a continuation of [M. Berkani and H. Zariouh, Math. Bohem. 134, No. 4, 369–378 (2009; Zbl 1211.47011); Mat. Vesn. 62, No. 2, 145–154 (2010; Zbl 1258.47020)] and [A. Gupta and N. Kashyap, Bull. Math. Anal. Appl. 3, 1–7 (2011; \urlemis:journals/BMAA/repository/docs/BMAA3-1-1.pdf)].

MSC:
47A10 Spectrum, resolvent
47A53 (Semi-) Fredholm operators; index theories
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