In the first chapter the Markov chains in random environment are defined and some properties of the Markov in random environment are studied.
在第一章，定义了随机环境中的马氏链并给出了一些基本性质。
In the second chapter, we study weakly recurrence of the Markov in random environment, and provide the sufficient condition for weakly recurrence.
在第二章，研究了随机环镜中的马氏链的弱常返性，给出了弱常返性的一个充分条件。
Wang Rongming(1993) calculated the extinction probabilities for a class of random walk in a random environment with the set of non-negative integers as state space.
汪荣明（1993）求出了状态空间为非负整数集的随机环境中随机游动的灭绝概率，并得到明确的表达式。
Wang Rongming(1993) calculated the extinction probabilities for a class of random walk in a random environment with the set of non-negative integers as state space.
汪荣明（1993）求出了状态空间为非负整数集的随机环境中随机游动的灭绝概率，并得到明确的表达式。
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