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Gustafson, weidman, kato, wolf, schechter, browder, Rakočević and Schmoeger essential spectra of the sum of two bounded operators and application to a transport operator

✍ Scribed by Faiçal Abdmouleh; Aref Jeribi

Publisher: John Wiley and Sons
Year: 2011
Tongue: English
Weight: 131 KB
Volume: 284
Category: Article
ISSN: 0025-584X
DOI: 10.1002/mana.200710131

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✦ Synopsis

Abstract

In this paper we investigate the essential spectra of the sum of two bounded linear operators defined on a Banach space by means of the essential spectra of each of the two operators where their products are Fredholm or semi‐Fredholm perturbations. Furthermore, we give an application to a transport operator. © 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim

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