A new characterization of the Hardy space and of other spaces of analytic functions
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arXiv
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| Natura: | Preprint |
| Pubblicazione: |
2020
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| _version_ | 1866915735928832000 |
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| author | Alpay, Natanael |
| author_facet | Alpay, Natanael |
| contents | The Fock space can be characterized (up to a positive multiplicative factor) as the only Hilbert space of entire functions in which the adjoint of derivation is multiplication by the complex variable. Similarly (and still up to a positive multiplicative factor) the Hardy space is the only space of functions analytic in the open unit disk for which the adjoint of the backward shift operator is the multiplication operator. In the present paper we characterize the Hardy space and some related reproducing kernel Hilbert spaces in terms of the adjoint of the differentiation operator. We use reproducing kernel methods, which seem to also give a new characterization of the Fock space. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2009_10937 |
| institution | arXiv |
| publishDate | 2020 |
| record_format | arxiv |
| spellingShingle | A new characterization of the Hardy space and of other spaces of analytic functions Alpay, Natanael Functional Analysis 46E22, 47B32, 30H20, 30H10 The Fock space can be characterized (up to a positive multiplicative factor) as the only Hilbert space of entire functions in which the adjoint of derivation is multiplication by the complex variable. Similarly (and still up to a positive multiplicative factor) the Hardy space is the only space of functions analytic in the open unit disk for which the adjoint of the backward shift operator is the multiplication operator. In the present paper we characterize the Hardy space and some related reproducing kernel Hilbert spaces in terms of the adjoint of the differentiation operator. We use reproducing kernel methods, which seem to also give a new characterization of the Fock space. |
| title | A new characterization of the Hardy space and of other spaces of analytic functions |
| topic | Functional Analysis 46E22, 47B32, 30H20, 30H10 |
| url | https://arxiv.org/abs/2009.10937 |