On the rate of convergence in the Hall-Janson coverage theorem
arxiv(2024)
摘要
Consider a spherical Poisson Boolean model Z in Euclidean d-space with d
≥ 2, with Poisson intensity t and radii distributed like rY with r
≥ 0 a scaling parameter and Y a fixed nonnegative random variable with
finite (2d-2)-nd moment (or if d=2, a finite (2 + ε)-moment
condition for some ε >0). Let A ⊂ R^d be compact with
a nice boundary. Let α be the expected volume of a ball of radius Y,
and suppose r=r(t) is chosen so that α t r^d - log t - (d-1) loglog
t is a constant independent of t. A classical result of Hall and of Janson
determines the (non-trivial) large-t limit of the probability that A is
fully covered by Z. In this paper we provide an O((loglog t)/log t)
bound on the rate of convergence in that result. With a slight adjustment to
r(t), this can be improved to O(1/log t).
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