Bounded Point Evaluations and Local Spectral Theory

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We study in this paper the concept of bounded point evaluations for cyclic operators. We give a negative answer to a question of L.R. Williams {\it Dynamic Systems and Apllications} 3(1994) 103-112. Furthermore, we generalize some results of Williams and give a simple proof of theorem 2.5 of L.R. Williams (The Local Spectra of Pure Quasinormal Operators J. Math. anal. Appl. 187(1994) 842-850) that non normal hyponormal weighted shifts have fat local spectra.
44pp, diploma thesis

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Functional Analysis, Spectral Theory, Primary 47A10; Secondary 47B20

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http://salesiana.dossiersoluciones.com/handle/123456789/59799

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0008197
 http://arxiv.org/abs/math/0008197

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arXiv