Some block Toeplitz composition operators
type: Item
instance of: scholarly article
title: Some block Toeplitz composition operators
zbMATH Open document ID: 1311.47036
author: Linda J. Patton
published in: Journal of Mathematical Analysis and Applications
publication date: 2013-03-11T00:00:00Z
review text: In the paper under review, the authors show that the Bourdon-Shapiro conjecture holds for composition operators on the Hardy class \(H^2\) with minimal polynomial \(z^3-1\), i.e., the numerical range of such operators is not a disk.
reviewed by: Vladimir V. Peller
Mathematics Subject Classification ID: 47B33
Mathematics Subject Classification ID: 47A12
Mathematics Subject Classification ID: 47B35
zbMATH DE Number: 6143216
zbMATH Keywords: composition operators
zbMATH Keywords: block Toeplitz operators
zbMATH Keywords: numerical range
zbMATH Keywords: Hardy class
MaRDI profile type: Publication
full work available at URL: j.jmaa.2012.11.057
OpenAlex ID: W1987944426
DOI: 10.1016/J.JMAA.2012.11.057
description: scientific article; zbMATH DE number 6143216