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arXiv 1012.1959math.PR
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Z上随机环境中瞬态随机游动涨落的熄灭极限

Quenched limits for the fluctuations of transient random walks in random environment on Z

Nathanaël Enriquez, Christophe Sabot, Laurent Tournier, Olivier Zindy

摘要:

考虑Z上随机环境中的瞬时最近邻随机游动。对于一组环境的概率收敛到1的时间趋于无穷大,我们描述了波动的首中时的水平n,其平均值,在一个明确的功能的环境。此外,他们的限制法律描述使用泊松点过程的强度计算。这个结果可以看作是Kesten,Kozlov和Spitzer [Compositio Math.30(1975)145-168]经典结果的猝灭类似。

英文摘要:

We consider transient nearest-neighbor random walks in random environment on Z. For a set of environments whose probability is converging to 1 as time goes to infinity, we describe the fluctuations of the hitting time of a level n, around its mean, in terms of an explicit function of the environment. Moreover, their limiting law is described using a Poisson point process whose intensity is computed. This result can be considered as the quenched analog of the classical result of Kesten, Kozlov and Spitzer [Compositio Math. 30 (1975) 145-168].

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