考虑半直线上(1,R)随机环境中的随机游动.通过构造合适的李雅普诺夫函数,运用马氏链的鞅判别准则,给出了游动常返暂留性以及正常返性的判定.
The (1,R)random walk in random environment on the half line is investgated.By constructing appropriate Lyapunov functions,we give a criterion for recurrence and transience by using martingale criteria for countable irreducible Markov chalns.