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