spectra of subnormal pairs

Clicks: 203
ID: 246777
2007
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Abstract
In this short note we present an example related to joint spectra of subnormal pairs of bounded operators. A counterexample to the equality between Taylor's spectrum and the closure of the defect spectrum is given. This example is related to the author's modification of N. Sibony's counterexample to Corona Theorem on domains that fail to be strictly pseudoconvex.
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rudol2007opusculaspectra Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Krzysztof Rudol
Journal zhonghua yi xue za zhi
Year 2007
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