On the Spectrum of a Morphism of Quotient Hilbert Spaces
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 fun...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
University Constantin Brancusi of Targu-Jiu
2006-12-01
|
| Series: | Surveys in Mathematics and its Applications |
| Subjects: | |
| Online Access: | http://www.utgjiu.ro/math/sma/v01/p02.pdf |