递归的一个强Borel-Cantelli引理

IF 0.7 3区 数学 Q2 MATHEMATICS
T. Persson
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引用次数: 3

摘要

摘要考虑一个混合动力系统([0,1],T, μ),例如一个Gibbs测度为μ的分段展开区间映射。给定一个非负数的不可和数列(mk),可以定义rk(x)使得μ(B(x, rk(x)) = mk。证明了对于几乎所有的x, k≤n的个数使得Tk(x)∈Bk(x)近似等于m1 +…+锰。这是递归的一种强Borel-Cantelli引理。结果就是
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A strong Borel–Cantelli lemma for recurrence
ABSTRACT. Consider a mixing dynamical systems ([0, 1], T, μ), for instance a piecewise expanding interval map with a Gibbs measure μ. Given a non-summable sequence (mk) of non-negative numbers, one may define rk(x) such that μ(B(x, rk(x)) = mk. It is proved that for almost all x, the number of k ≤ n such that Tk(x) ∈ Bk(x) is approximately equal to m1 + . . . + mn. This is a sort of strong Borel–Cantelli lemma for recurrence. A consequence is that
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来源期刊
Studia Mathematica
Studia Mathematica 数学-数学
CiteScore
1.50
自引率
12.50%
发文量
72
审稿时长
5 months
期刊介绍: The journal publishes original papers in English, French, German and Russian, mainly in functional analysis, abstract methods of mathematical analysis and probability theory.
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