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Infinitesimal Carleson property for weighted measures induced by analytic self-maps of the unit disk

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Daniel Li
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Hervé Queffélec
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  • PersonId : 916881
Luis Rodriguez-Piazza
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  • PersonId : 859619

Abstract

We prove that, for every $\alpha > -1$, the pull-back measure $\phi ({\cal A}_\alpha )$ of the measure $d{\cal A}_\alpha (z) = (\alpha + 1) (1 - |z|^2)^\alpha \, d{\cal A} (z)$, where ${\cal A}$ is the normalized area measure on the unit disk $\D$, by every analytic self-map $\phi \colon \D \to \D$ is not only an $(\alpha + 2)$-Carleson measure, but that the measure of the Carleson windows of size $\eps h$ is controlled by $\eps^{\alpha + 2}$ times the measure of the corresponding window of size $h$. This means that the property of being an $(\alpha + 2)$-Carleson measure is true at all infinitesimal scales. We give an application by characterizing the compactness of composition operators on weighted Bergman-Orlicz spaces.
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hal-00704738 , version 1 (06-06-2012)

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Daniel Li, Hervé Queffélec, Luis Rodriguez-Piazza. Infinitesimal Carleson property for weighted measures induced by analytic self-maps of the unit disk. 2012. ⟨hal-00704738⟩
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