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arXiv 0903.1071math.PR
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随机场景中随机游动的泛函方法

A functional approach for random walks in random sceneries

Clément Dombry, Nadine Guillotin-Plantard

摘要:

提出了一种研究随机场景中随机游动的泛函方法。在相当一般的假设下,随机游动和随机风景,功能极限定理的证明。该方法允许分别研究步行和风景的收敛:一方面,步行的当地时间的收敛提供了一个通用的标准,另一方面,与风景相关联的随机措施的收敛进行了研究。这种功能的方法是强大的,足以恢复许多已知的结果RWRS以及新的,包括许多步行者的情况下,在相同的风景。

英文摘要:

A functional approach for the study of the random walks in random sceneries (RWRS) is proposed. Under fairly general assumptions on the random walk and on the random scenery, functional limit theorems are proved. The method allows to study separately the convergence of the walk and of the scenery: on the one hand, a general criterion for the convergence of the local time of the walk is provided, on the other hand, the convergence of the random measures associated with the scenery is studied. This functional approach is robust enough to recover many of the known results on RWRS as well as new ones, including the case of many walkers evolving in the same scenery.

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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