中文

Random walk attracted by percolation clusters

概率论 2012-01-31 v1

摘要

Starting with a percolation model in Zd\Z^d in the subcritical regime, we consider a random walk described as follows: the probability of transition from xx to yy is proportional to some function ff of the size of the cluster of yy. This function is supposed to be increasing, so that the random walk is attracted by bigger clusters. For f(t)=eβtf(t)=e^{\beta t} we prove that there is a phase transition in β\beta, i.e., the random walk is subdiffusive for large β\beta and is diffusive for small β\beta.

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引用

@article{arxiv.math/0507054,
  title  = {Random walk attracted by percolation clusters},
  author = {Serguei Popov and Marina Vachkovskaia},
  journal= {arXiv preprint arXiv:math/0507054},
  year   = {2012}
}

备注

13 pages