摘 要:
假定{(αi,βi),αi,βi∈(0,1),i∈Z)是一列i.i.d.的随机变量,γi=1-αi-βi,称{(αi,γi,βi),i∈Z}为随机环境.在这个环境上定义一个随机游动{Xk}(称为随机环境中可逗留随机游动):当在x状态时,它以概率αx向右游走一步,以概率βx向左游走一步,或者以概率γx逗留.本文获得了该过程能够游走的最大值的强极限边界.[著者文摘]
文章出处:
《应用数学》-2006年19卷2期 -270-274页
分 类 号:
文献标识码:
A
文章编号:
1001-9847(2006)02-0270-05
The Limiting Bounds of Random Walk with Resting State in a Random Environment
LIU Xiang-dong ,CHEN Ping-yan (1. Department of Statistics , jinan University ,Guangzhou 510632 ,China; 2. Department of Mathematics, Jinan University, Guangzhou 510632, China)
Abstract:
Suppose that {(αi,βi),αi,βi∈(0,1),i∈Z) are i. i. d. random variables, γi=1-αi-βi·{(αi,γi,βi),i∈Z} serve as an environment. This environment defines a random walk {Xk} (Called random walk with resting state on the line in a random environment) which,when at x, moves one step to the right with probability αx, and one step to the left with probability βx, or rests with probability γx· strong limiting bounds for maximal excursion and for maximum reached by this processes are obtained.[著者文摘]
Key words:
Random environment ; Random walk ; The law of the iterated logrithm ; Strong limiting bounds
基金资助:
国家自然科学基金(10271120)资助项目;暨南大学校内基金资助项目(600223)

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