Spectra of subnormal Hardy type operators
Volume 65 / 1997
Annales Polonici Mathematici 65 (1997), 213-222
DOI: 10.4064/ap-65-3-213-222
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.
