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arXiv 0903.2696math.PR
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生长超立方体上随机游动的局部时

The local time of a random walk on growing hypercubes

Pierre Andreoletti

摘要:

本文在$\Z^d$,$1 \leq d < +\infty$上研究了随机环境中的随机游动.主要假设是在一定的环境条件下,随机游动是可逆的。此外,我们以这样一种方式构建我们的环境,即行走不能像某些特定的RWRE那样被困在单个点上,而是在某些特定的d-1曲面上。这些曲面是具有确定性几何形状的基本曲面。我们证明了这些表面的邻域中的本地时间是由(随机)可逆测度的函数驱动的。作为应用,我们得到了局部时作为一个过程在这些曲面上的极限定律。

英文摘要:

We study a random walk in a random environment (RWRE) on $\Z^d$, $1 \leq d < +\infty$. The main assumptions are that conditionned on the environment the random walk is reversible. Moreover we construct our environment in such a way that the walk can't be trapped on a single point like in some particular RWRE but in some specific d-1 surfaces. These surfaces are basic surfaces with deterministic geometry. We prove that the local time in the neighborhood of these surfaces is driven by a function of the (random) reversible measure. As an application we get the limit law of the local time as a process on these surfaces.

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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