中文

无限平均度配置模型上接触过程的亚稳态性

概率论 2015-07-20 v3

摘要

我们研究了具有幂律度分布的配置模型上的接触过程,其中指数小于或等于2。我们证明了灭绝时间随图规模呈指数级增长,并证明了两个亚稳态性结果。首先,当图规模趋于无穷时,灭绝时间除以其均值在分布上收敛于均值为1的指数随机变量。此外,在指数时间点上取样的感染节点密度依概率收敛于一个常数。这扩展了先前在指数大于2的情况下于文献[CD,MMVY,MVY]中获得的结果。

关键词

引用

@article{arxiv.1410.3061,
  title  = {Metastability for the contact process on the configuration model with infinite mean degree},
  author = {Van Hao Can and Bruno Schapira},
  journal= {arXiv preprint arXiv:1410.3061},
  year   = {2015}
}

备注

Proposition 6.2 replaced by a weaker version (after a gap in its proof was mentioned to us by Daniel Valesin). Does not affect the two main theorems of the paper