Cutpoints of non-homogeneous random walks

Cutpoints of non-homogeneous random walks
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非齐次随机游走的切点

DOI:
10.30757/alea.v19-19
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发表时间:
2020
期刊:
Latin American Journal of Probability and Mathematical Statistics
影响因子:
--
通讯作者:
A. Wade
A. Wade
中科院分区:
--
文献类型:
--
作者:
Chak Hei Lo;M. Menshikov;A. Wade

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给出了半线上近临界随机过程具有无限多或有限多切点的条件,将已有的最近邻随机漫步结果推广到满足适当条件增量矩条件的有界增量自适应过程。我们应用其中的一个结果,推导出在$\mathbb{R}^d$, $d \geq 2$中的一类瞬态零漂移马尔可夫链具有无限多个分离环,推广了先前关于空间齐次随机漫步的结果。
We give conditions under which near-critical stochastic processes on the half-line have infinitely many or finitely many cutpoints, generalizing existing results on nearest-neighbour random walks to adapted processes with bounded increments satisfying appropriate conditional increment moments conditions. We apply one of these results to deduce that a class of transient zero-drift Markov chains in $\mathbb{R}^d$, $d \geq 2$, possess infinitely many separating annuli, generalizing previous results on spatially homogeneous random walks.
DOI: 10.1017/apr.2016.44
发表时间: 2016
影响因子: 1.2
作者:
Georgiou N
通讯作者: Georgiou N