Analytic structures for subnormal operators

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Abstract

For μ a compactly supported measure on ℂ, we construct a mutually absolutely continuous measure ν so that P2(ν) has analytic bounded point evaluations, and the operator of multiplication by z on P2(ν) has every invariant subspace hyperinvariant. We also construct an equivalent measure σ so that R2(K, σ) has as analytic bounded point evaluations precisely the interior of the set of weak-star continuous point evaluations of R(K, μ). In the course of the proof, we classify weak-star closed super-algebras of R(K, μ) when R(K) is hypo-Dirichlet.

Original languageEnglish
Pages (from-to)251-270
Number of pages20
JournalIntegral Equations and Operator Theory
Volume13
Issue number2
DOIs
StatePublished - Mar 1990

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