arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.05165math.PR
收藏

随机局部约束条件随机游动的结构性质

Structural Properties of Conditioned Random Walks on Integer Lattices with Random Local Constraints

Sergey Foss, Alexander Sakhanenko

摘要:

我们考虑一个随机游动的多维整数格上的随机边界的地方时间,条件的事件,它达到一个高水平之前,它的死亡。我们引入了一个辅助的“核心”过程,它具有再生结构,在我们的分析中起着关键作用。我们根据“核心”过程的相似分布获得了随机游动分布的许多表示。在此基础上,我们证明了一些限制性结果,让高水平趋于无穷大。特别是,我们推广了Benjamini和Berestycki(2010)在论文中获得的简单对称一维随机游动的结果。

英文摘要:

We consider a random walk on a multidimensional integer lattice with random bounds on local times, conditioned on the event that it hits a high level before its death. We introduce an auxiliary "core" process that has a regenerative structure and plays a key role in our analysis. We obtain a number of representations for the distribution of the random walk in terms of the similar distribution of the "core" process. Based on that, we prove a number of limiting results by letting the high level to tend to infinity. In particular, we generalise results for a simple symmetric one-dimensional random walk obtained earlier in the paper by Benjamini and Berestycki (2010).

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。

↑