$M$-ideals in $H^\infty(\mathbb{D})$
Abstract
This article intends to initiate an investigation into the structure of -ideals in , where denotes the Banach algebra of all bounded analytic functions on the open unit disc in . We introduce the notion of analytic primes and prove that -ideals in are analytic primes. From Hilbert function space perspective, we additionally prove that -ideals in are dense in the Hardy space. We show that outer functions play a key role in representing singly generated closed ideals in that are -ideals. This is also relevant to -ideals in that are finitely generated closed ideals in . We analyze -sets of and their connection to the \v{S}ilov boundary of the maximal ideal space of . Some of our results apply to the polydisc. In addition to addressing questions regarding -ideals, the results presented in this paper offer some new perspectives on bounded analytic functions.
Keywords
Cite
@article{arxiv.2403.16947,
title = {$M$-ideals in $H^\infty(\mathbb{D})$},
author = {Deepak K. D and Jaydeb Sarkar and Sreejith Siju},
journal= {arXiv preprint arXiv:2403.16947},
year = {2024}
}
Comments
Corrected and thoroughly revised. 34 pages