Interpolation and sampling sequences for entire functions

We characterise interpolating and sampling sequences for the spaces of entire functions $f$ such that $f e^{-\phi}\in L^p(\C)$, $p\geq 1$ where $\phi$ is a subharmonic weight whose Laplacian is a doubling measure. The results are expressed in terms of some densities adapted to the metric induced by...

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Detalhes bibliográficos
Autores: Marco, Nicolás, Massaneda Clares, Francesc Xavier, Ortega Cerdà, Joaquim
Tipo de documento: artigo
Estado:Versión aceptada para publicación
Data de publicação:2003
País:España
Recursos:Universidad de Barcelona
Repositório:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/164726
Acesso em linha:https://hdl.handle.net/2445/164726
Access Level:Acceso aberto
Palavra-chave:Interpolació (Matemàtica)
Funcions de variables complexes
Anàlisi funcional
Espais de Hilbert
Funcions analítiques
Interpolation
Functions of complex variables
Functional analysis
Hilbert space
Analytic functions
Descrição
Resumo:We characterise interpolating and sampling sequences for the spaces of entire functions $f$ such that $f e^{-\phi}\in L^p(\C)$, $p\geq 1$ where $\phi$ is a subharmonic weight whose Laplacian is a doubling measure. The results are expressed in terms of some densities adapted to the metric induced by $\Delta\phi$. They generalise previous results by Seip for the case $\phi(z)=|z|^2$, Berndtsson and Ortega-Cerdà and Ortega-Cerdà and Seip for the case when $\Delta\phi$ is bounded above and below, and Lyubarski\u{\i} \& Seip for 1-homogeneous weights of the form $\phi(z)=|z|h(\arg z)$, where $h$ is a trigonometrically strictly convex function.