Title of article
A Note on Essential Spectra of Linear Operator Pencils
Author/Authors
Živković-Zlatanović ، Snežana Č. Department of Mathematics - Faculty of Sciences and Mathematics - University of Niš , Chaâben ، Hamadi Department of Mathematics - Faculty of Sciences of Sfax - University of Sfax , Walha ، Ines Department of Mathematics - Faculty of Sciences of Sfax - University of Sfax , Abdmouleh ، Faiçal Department of Mathematics - School of Mathematics - Higher Institute of Industrial Management
From page
3439
To page
3456
Abstract
In this note, we provide some characterizations of left (right) Browder and upper (lower) semi-Browder operators, and get some results regarding boundaries and connected hulls of essential spectra of bounded linear operator pencils. Also, we investigate some geometric characteristics of these spectra.
Keywords
Bounded linear operator pencil , Banach space , Left (right) S , Fredholm spectrum , Left (right) S , Weyl spectrum , Left (right) S , Browder spectrum , Left (right) S , Browder radius
Journal title
Bulletin of the Iranian Mathematical Society
Journal title
Bulletin of the Iranian Mathematical Society
Record number
2775192
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