ArticleOriginal scientific text
Title
Spectra of subnormal Hardy type operators
Authors 1
Affiliations
- Institute of Mathematics, Polish Academy of Sciences, Św. Tomasza, 30 31-207 Kraków, Poland
Abstract
The essential spectrum of bundle shifts over Parreau-Widom domains is studied. Such shifts are models for subnormal operators of special (Hardy) type considered earlier in [AD], [R1] and [R2]. By relating a subnormal operator to the fiber of the maximal ideal space, an application to cluster values of bounded analytic functions is obtained.
Keywords
subnormal operators, Hardy classes, function algebras
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