Multipliers for Hardy spaces of Dirichlet series

[EN] We characterise the space of multipliers from the Hardy space of Dirichlet series H(P )into 'H-q for every 1 <= p, q <= infinity. For a fixed Dirichlet series, we also analyse some structural properties of its associated multiplication operator. In particular, we study th...

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Detalles Bibliográficos
Autores: Fernández Vidal, Tomás, Galicer, Daniel, Sevilla Peris, Pablo|||0000-0001-5222-4768
Tipo de recurso: artículo
Fecha de publicación:2025
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/226359
Acceso en línea:https://riunet.upv.es/handle/10251/226359
Access Level:acceso abierto
Palabra clave:Multipliers
Spaces of Dirichlet series
Hardy spaces
Infinite dimensional analysis
Descripción
Sumario:[EN] We characterise the space of multipliers from the Hardy space of Dirichlet series H(P )into 'H-q for every 1 <= p, q <= infinity. For a fixed Dirichlet series, we also analyse some structural properties of its associated multiplication operator. In particular, we study the norm, the essential norm, and the spectrum for an operator of this kind. We exploit the existing natural identification of spaces of Dirichlet series with spaces of holomorphic functions in infinitely many variables and apply several methods from complex and harmonic analysis to obtain our results. As a byproduct we get analogous statements on such Hardy spaces of holomorphic functions.