[6] USA. e-mail: rtd1@cornell.edu; kesten@math.cornell.edu; limic@math.cornell.edu,undefined
来源:
Probability Theory and Related Fields
|
2002年
/
122卷
关键词:
Random Walk;
Invariance Principle;
Linear Rate;
Regular Tree;
Neighbor Walk;
D O I:
暂无
中图分类号:
学科分类号:
摘要:
We consider a nearest neighbor walk on a regular tree, with transition probabilities proportional to weights or conductances of the edges. Initially all edges have weight 1, and the weight of an edge is increased to $c > 1$ when the edge is traversed for the first time. After such a change the weight of an edge stays at $c$ forever. We show that such a walk is transient for all values of $c \ge 1$, and that the walk moves off to infinity at a linear rate. We also prove an invariance principle for the height of the walk.