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On the hitting probabilities of limsup random fractals

Probability 2022-06-01 v1

Abstract

Let AA be a limsup random fractal with indices γ1, γ2 \gamma_1, ~\gamma_2 ~and δ\delta on [0,1]d[0,1]^d. We determine the hitting probability P(AG)\mathbb{P}(A\cap G) for any analytic set GG with the condition ()(\star) ⁣:\colon dimH(G)>γ2+δ\dim_{\rm H}(G)>\gamma_2+\delta, where dimH\dim_{\rm H} denotes the Hausdorff dimension. This extends the correspondence of Khoshnevisan, Peres and Xiao [10] by relaxing the condition that the probability PnP_n of choosing each dyadic hyper-cube is homogeneous and limnlog2Pnn\lim\limits_{n\to\infty}\frac{\log_2P_n}{n} exists. We also present some counterexamples to show the Hausdorff dimension in condition ()(\star) can not be replaced by the packing dimension.

Keywords

Cite

@article{arxiv.2112.07135,
  title  = {On the hitting probabilities of limsup random fractals},
  author = {Zhang-nan Hu and Wen-Chiao Cheng and Bing Li},
  journal= {arXiv preprint arXiv:2112.07135},
  year   = {2022}
}

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12 pages