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A threshold for Poisson behavior of non-stationary product measures

Dynamical Systems 2026-03-11 v2 Probability

Abstract

Let γn=O(logcn)\gamma_{n}= O (\log^{-c}n) and let ν\nu be the infinite product measure whose nn-th marginal is Bernoulli(1/2+γn)(1/2+\gamma_{n}). We show that c=1/2c=1/2 is the threshold, above which ν\nu-almost every point is simply Poisson generic in the sense of Peres-Weiss, and below which this can fail. This provides a range in which ν\nu is singular with respect to the uniform product measure, but ν\nu-almost every point is simply Poisson generic.

Keywords

Cite

@article{arxiv.2501.11423,
  title  = {A threshold for Poisson behavior of non-stationary product measures},
  author = {Michael Hochman and Nicolò Paviato},
  journal= {arXiv preprint arXiv:2501.11423},
  year   = {2026}
}

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10 pages