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随机环境中随机游动的Strassen不变原理

Strassen's Invariance Principle for Random Walk in Random Environment
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摘要 本文研究了d-维格子点上随机环境中随机游动模型.利用鞅方法及Derriennic和Lin所发展的分数上边缘理论,在粒子的Quenched均值的方差具有次扩散界的条件下,证明了该模型的Strassen强不变原理. We consider random walk in random environment on Zd (d ≥ 1) and prove the Strassen' s strong invariance principle for this model, via martingale argument and the theory of fractional coboundaries of Derriennic and Lin, under some conditions which require the variance of the quenched mean has a subdiffusive bound.
出处 《数学学报(中文版)》 SCIE CSCD 北大核心 2009年第3期483-494,共12页 Acta Mathematica Sinica:Chinese Series
基金 国家自然科学基金资助项目(10771185)
关键词 随机环境中随机游动 Strassen不变原理 重对数律 random walk in random environment Strassen' s invariance principle lawof iterated logarithm
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