Almost periodicity and boundary values of Dirichlet series
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866912425951887360 |
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| author | Brevig, Ole Fredrik Kouroupis, Athanasios Perfekt, Karl-Mikael |
| author_facet | Brevig, Ole Fredrik Kouroupis, Athanasios Perfekt, Karl-Mikael |
| contents | We employ almost periodicity to establish analogues of the Hardy--Stein identity and the Littlewood--Paley formula for Hardy spaces of Dirichlet series. A construction of Saksman and Seip shows that the limits in this Littlewood--Paley formula cannot be interchanged. We apply this construction to show that the limits in the definition of the mean counting function for Dirichlet series cannot be interchanged. These are essentially statements about the two different kinds of boundary values that we associate with Dirichlet series that converge to a bounded analytic function in a half-plane. The treatment of the mean counting function also involves an investigation of the zero sets and Blaschke products of such Dirichlet series. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2405_03522 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Almost periodicity and boundary values of Dirichlet series Brevig, Ole Fredrik Kouroupis, Athanasios Perfekt, Karl-Mikael Classical Analysis and ODEs Complex Variables We employ almost periodicity to establish analogues of the Hardy--Stein identity and the Littlewood--Paley formula for Hardy spaces of Dirichlet series. A construction of Saksman and Seip shows that the limits in this Littlewood--Paley formula cannot be interchanged. We apply this construction to show that the limits in the definition of the mean counting function for Dirichlet series cannot be interchanged. These are essentially statements about the two different kinds of boundary values that we associate with Dirichlet series that converge to a bounded analytic function in a half-plane. The treatment of the mean counting function also involves an investigation of the zero sets and Blaschke products of such Dirichlet series. |
| title | Almost periodicity and boundary values of Dirichlet series |
| topic | Classical Analysis and ODEs Complex Variables |
| url | https://arxiv.org/abs/2405.03522 |