Fredholm Theory

Carlos S. Kubrusly
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Carlos S. Kubrusly: Catholic University of Rio de Janeiro, Electrical Engineering Department

Chapter 5 in Spectral Theory of Operators on Hilbert Spaces, 2012, pp 131-186 from Springer

Abstract: Abstract The central theme of this chapter investigates compact perturbations.We shall be particularly concerned with properties of the spectrum of an operator that are invariant under compact perturbations; that is, properties of the spectrum of T that are also possessed by the spectrum of T + K for every compact operator K.

Keywords: Essential Spectrum; Fredholm Operator; Compact Perturbation; Fredholm Alternative; Weyl Operator (search for similar items in EconPapers)
Date: 2012
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DOI: 10.1007/978-0-8176-8328-3_5

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