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July 2, 2019 16:30–17:10, Nordfjordeid Summer School 2019 - Analysis, Geometry and PDE, Norway  


Extrapolation for point processes

A. I. Bufetovab

a Steklov Mathematical Institute of Russian Academy of Sciences, Moscow
b Centre National de la Recherche Scientifique, Paris
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Abstract: Consider a Gaussian Analytic Function on the disk, that is, a random series whose coefficients are independent complex Gaussians. In joint work with Yanqi Qiu and Alexander Shamov, we show that the zero set of a Gaussian Analytic Function is a uniqueness set for the Bergman space on the disk: in other words, almost surely, there does not exist a nonzero square-integrable holomorphic function having these zeros. The key role in our argument is played by the determinantal structure of the zeros given by the PeresVir´ag Theorem, and we prove, in general, that the family of reproducing kernels along a realization of a determinantal point process generates the whole ambient Hilbert space, thus settling a conjecture of Lyons and Peres. In a sequel paper, joint with Yanqi Qiu, we study how to recover a holomorphic function from its values on our random set. The talk is based on the preprints arXiv:1806.02306, arXiv:1612.06751, arXiv:1605.01400

Language: English

Website: https://wiki.math.ntnu.no/nordfjordeid2019
 
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