Abstract
The similarity problem for restrictions of a non-selfadjoint operator with absolutely continuous spectrum to its spectral subspaces corresponding to arbitrary Borel subsets δ of the spectrum is considered, generalizing the results of [7, 11]. Necessary and sufficient conditions of such similarity are obtained in the form of a pair of integral estimates on δ ⊂ ℝ. The results are then applied to the analysis of the one-dimensional non-selfadjoint Friedrichs model operator.
Original language | English |
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Title of host publication | Spectral Theory and Analysis - Conference on Operator Theory, Analysis and Mathematical Physics, OTAMP 2008 |
Editors | Jan Janas, Pavel Kurasov, Ari Laptev, Ari Laptev, Sergei Naboko, Günter Stolz |
Publisher | Springer International Publishing |
Pages | 67-82 |
Number of pages | 16 |
ISBN (Print) | 9783764399931 |
DOIs | |
Publication status | Published - 2011 |
Event | Conference on Operator Theory, Analysis and Mathematical Physics, OTAMP 2008 - Bedlewo, Poland Duration: 1 Jan 2008 → … |
Publication series
Name | Operator Theory: Advances and Applications |
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Volume | 214 |
ISSN (Print) | 0255-0156 |
ISSN (Electronic) | 2296-4878 |
Conference
Conference | Conference on Operator Theory, Analysis and Mathematical Physics, OTAMP 2008 |
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Country/Territory | Poland |
City | Bedlewo |
Period | 1/01/08 → … |
Bibliographical note
Publisher Copyright:© Springer Basel AG 2011.
Keywords
- Absolutely continuous spectrum
- Non-selfadjoint operators
- Similarity problem
ASJC Scopus subject areas
- Analysis