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Random interpolating sequences in Dirichlet spaces

Abstract : We discuss random interpolation in weighted Dirichlet spaces $\mathcal{D}_\alpha$, $0\leq \alpha\leq 1$. While conditions for deterministic interpolation in these spaces depend on capacities which are very hard to estimate in general, we show that random interpolation is driven by surprisingly simple distribution conditions. As a consequence, we obtain a breakpoint at $\alpha=1/2$ in the behavior of these random interpolating sequences showing more precisely that almost sure interpolating sequences for $\mathcal{D}_\alpha$ are exactly the almost sure separated sequences when $0\le \alpha<1/2$ (which includes the Hardy space $H^2=\mathcal{D}_0$), and they are exactly the almost sure zero sequences for $\mathcal{D}_\alpha$ when $1/2 \leq \alpha\le 1$ (which includes the classical Dirichlet space $\mathcal{D}=\mathcal{D}_1$).
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https://hal.archives-ouvertes.fr/hal-02113238
Contributor : Andreas Hartmann <>
Submitted on : Wednesday, September 23, 2020 - 5:05:16 PM
Last modification on : Saturday, September 26, 2020 - 3:28:41 AM

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  • HAL Id : hal-02113238, version 3
  • ARXIV : 1904.12529

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Nikolaos Chalmoukis, Andreas Hartmann, Karim Kellay, Brett Wick. Random interpolating sequences in Dirichlet spaces. 2019. ⟨hal-02113238v3⟩

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