arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2004.11324math.PR
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事件的弱独立性与Borel-Cantelli引理的逆

Weak independence of events and the converse of the Borel--Cantelli Lemma

Csaba Biró, Israel R. Curbelo

摘要:

Borel-Cantelli引理的逆命题是,如果$\{A_i\}_{i=1}^\infty$是一个独立事件序列,使得$\sum P(A_i)=\infty$,那么几乎肯定会有无穷多个这样的事件发生。Erd \H os和Rényi证明了将独立性条件减弱为两两独立性是足够的。在本文中,我们研究各种条件的弱独立性,隐含的结论的逆Borel-Cantelli引理。我们将确定这些条件之间的确切含义关系。

英文摘要:

The converse of the Borel-Cantelli Lemma states that if $\{A_i\}_{i=1}^\infty$ is a sequence of independent events such that $\sum P(A_i)=\infty$, then almost surely infinitely many of these events will occur. Erd\H os and Rényi proved that it is sufficient to weaken the condition of independence to pairwise independence. In this paper we study various conditions of weak independence that imply the conclusion of the converse of the Borel--Cantelli Lemma. We will determine the exact implicational relationship among these conditions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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