在随机环境马氏链的研究领域中，引入了弱常返性的概念，给出了弱常返性的判别准则，同时首次提出了弱一致瞬时性的概念。
The concept of weak recurrence for Markov chains in random environments is introduced , and a criterion for weak recurrence for Markov chains in random environments is obtained .
引入返