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Title: | Subnormality and moment problemsy |
Authors: | Vasilescu, Florian Horia |
Keywords: | Operadores (sub)normales acotados y no acotados;Medida espectral;Momento problemas;Conjuntos algebraicos;Álgebras de fracciones;Bounded and unbounded (sub)normal operators;Spectral measure;Moment problems;Algebraic sets;Algebras of fractions |
Issue Date: | 2009 |
Publisher: | Universidad de Extremadura, Servicio de Publicaciones |
Abstract: | There exists a strong connection between the concept of (sub)normality and that of moment problem. They interact very often, sometimes in a subtle, unexpected way. It is possible to use a (sub)normality result, providing eventually a spectral measure, used to solve a moment problem. Conversely, there are situations when the solution to a momento problem leads to the existence of a normal extension for some operators. The present work endeavor to present several results sustaining the interplay mentioned above, as well as the necessary background to understand those phenomena, both is a bounded or a unbounded context. |
Description: | This text is a written version of the lectures given by the author within the Fourth Advanced Course in Operator Theory and Complex Analysis, held at the University of Sevilla, June 18-20, 2007. |
URI: | http://hdl.handle.net/10662/13987 |
ISSN: | 0213-8743 |
Appears in Collections: | Extracta Mathematicae Vol. 24, nº 2 (2009) |
Files in This Item:
File | Description | Size | Format | |
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2605-5686_24_2_167.pdf | 212,97 kB | Adobe PDF | View/Open |
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