Corona Theorem

Fuente: arXiv
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Auteurs principaux: Kosiek, Marek, Rudol, Krzysztof
Format: Preprint
Publié: 2021
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author Kosiek, Marek
Rudol, Krzysztof
author_facet Kosiek, Marek
Rudol, Krzysztof
contents For a wide class of domains $G\subset\mathbb C^d$ including balls and polydisks we prove the density of their canonical image in the spectrum of $H^\infty(G)$. This Corona Theorem is proved first in its abstract version for certain uniform algebras. We use properties of bands of measures and idempotents corresponding to Gleason parts. The essential tools are properties of hyper-Stonean spaces, normal and Henkin measures and some ideas based on Hoffman - Rossi theorem. We also use our previous results on weak-star closures of reducing bands of measures. Uniform bounds for operators used to solve the Gleason problem concerning ideals of analytic functions vanishing at given points are applied for bidual algebras.
format Preprint
id arxiv_https___arxiv_org_abs_2106_15683
institution arXiv
publishDate 2021
record_format arxiv
spellingShingle Corona Theorem
Kosiek, Marek
Rudol, Krzysztof
Functional Analysis
Complex Variables
Primary 30H80, 32A65, 46J15, Secondary 32A38, 46B42, 46J20
For a wide class of domains $G\subset\mathbb C^d$ including balls and polydisks we prove the density of their canonical image in the spectrum of $H^\infty(G)$. This Corona Theorem is proved first in its abstract version for certain uniform algebras. We use properties of bands of measures and idempotents corresponding to Gleason parts. The essential tools are properties of hyper-Stonean spaces, normal and Henkin measures and some ideas based on Hoffman - Rossi theorem. We also use our previous results on weak-star closures of reducing bands of measures. Uniform bounds for operators used to solve the Gleason problem concerning ideals of analytic functions vanishing at given points are applied for bidual algebras.
title Corona Theorem
topic Functional Analysis
Complex Variables
Primary 30H80, 32A65, 46J15, Secondary 32A38, 46B42, 46J20
url https://arxiv.org/abs/2106.15683