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中国科学院大学学报 ›› 2017, Vol. 34 ›› Issue (1): 1-7.DOI: 10.7523/j.issn.2095-6134.2017.01.001

• 数学与物理学 •    下一篇

变化环境中分枝树上有偏随机游动的状态分类

张志洋, 胡晓予   

  1. 中国科学院大学数学科学学院, 北京 100049
  • 收稿日期:2015-12-30 修回日期:2016-05-20 发布日期:2017-01-15
  • 通讯作者: 胡晓予,E-mail:xyhu@ucas.ac.cn
  • 基金资助:

    国家自然科学基金(11171342)资助

Classification of states for a biased random walk on a branching tree in the varying environment

ZHANG Zhiyang, HU Xiaoyu   

  1. School of Mathematical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2015-12-30 Revised:2016-05-20 Published:2017-01-15

摘要:

考虑变化环境中分枝树上的广义有偏随机游动,分别得到随机游动为暂留的、正常返的和零常返的充分条件,为进一步研究这类随机游动的中心极限定理等性质做了铺垫。

关键词: 树上随机游动, 变化环境中分枝过程, 常返性, 暂留性

Abstract:

In this study we investigate biased random walk on branching trees in the varying environment. We have obtained the sufficient conditions for transience, positive recurrence, and null recurrence. Our main result enables the further study on the central limit theory for this kind of random walks.

Key words: random walk on a tree, branching process in the varying environment, recurrence, transience

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