A Katznelson-Tzafriri theorem for analytic Besov functions of operators
Functional Analysis
2024-09-10 v4
Abstract
Let be a power-bounded operator on a Banach space , be a Banach algebra of bounded holomorphic functions on the unit disc , and assume that there is a bounded functional calculus for the operator , so there is a bounded algebra homomorphism mapping functions to bounded operators on . Theorems of Katznelson-Tzafriri type establish that for functions whose boundary functions vanish on the unitary spectrum of , or sometimes satisfy a stronger assumption of spectral synthesis. We consider the case when is the Banach algebra of analytic Besov functions on . We prove a Katznelson-Tzafriri theorem for the -calculus which extends several previous results.
Keywords
Cite
@article{arxiv.2201.12076,
title = {A Katznelson-Tzafriri theorem for analytic Besov functions of operators},
author = {Charles Batty and David Seifert},
journal= {arXiv preprint arXiv:2201.12076},
year = {2024}
}
Comments
To appear in Journal of Operator Theory