On the Spectrum of a Morphism of Quotient Hilbert Spaces
Journal Title: Surveys in Mathematics and its Applications - Year 2006, Vol 1, Issue 0
Abstract
In this paper we define the notion of spectrum for a morphism of quotient Hilbert spaces. The definition is the same with the one given by L.Waelbroeck but the proofs that the spectrum is a compact and nonempty set are different. In this context we also make some remarks concerning the resolvent function and the spectral radius.
Authors and Affiliations
Sorin Nadaban
Keywords
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