On the equality of De Branges-Rovnyak and Dirichlet spaces

Fuente: arXiv
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Main Authors: Dellepiane, Eugenio, Peloso, Marco M., Tabacco, Anita
Format: Preprint
Published: 2025
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author Dellepiane, Eugenio
Peloso, Marco M.
Tabacco, Anita
author_facet Dellepiane, Eugenio
Peloso, Marco M.
Tabacco, Anita
contents This work is devoted to the comparison of de Branges--Rovnyak $H(b)$ spaces harmonically weighted Dirichlet spaces $\mathcal{D}_μ$. We completely characterize which $H(b)$ spaces are also harmonically weighted Dirichlet spaces $\mathcal{D}_μ$, when $μ$ is a finite sum of atoms. This is a generalization of a previous result by Costara--Ransford \cite{costara2013}: we make no assumptions on the Pythagorean pair $(b,a)$, and we produce new examples.
format Preprint
id arxiv_https___arxiv_org_abs_2505_16572
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle On the equality of De Branges-Rovnyak and Dirichlet spaces
Dellepiane, Eugenio
Peloso, Marco M.
Tabacco, Anita
Functional Analysis
Complex Variables
30H45, 30H10, 46E22, 30J99
This work is devoted to the comparison of de Branges--Rovnyak $H(b)$ spaces harmonically weighted Dirichlet spaces $\mathcal{D}_μ$. We completely characterize which $H(b)$ spaces are also harmonically weighted Dirichlet spaces $\mathcal{D}_μ$, when $μ$ is a finite sum of atoms. This is a generalization of a previous result by Costara--Ransford \cite{costara2013}: we make no assumptions on the Pythagorean pair $(b,a)$, and we produce new examples.
title On the equality of De Branges-Rovnyak and Dirichlet spaces
topic Functional Analysis
Complex Variables
30H45, 30H10, 46E22, 30J99
url https://arxiv.org/abs/2505.16572