中文

临界Erdős-Rényi随机图上动态渗流的标度极限

概率论 2020-02-06 v4

摘要

考虑一个临界Erdős-Rényi随机图:nn为顶点数,(n2)\binom{n}{2}条可能边中的每一条独立地以概率n1+λn4/3n^{-1}+\lambda n^{-4/3}保留在图中,其中λ\lambda是一个固定实数。当nn趋于无穷时,Addario-Berry、Broutin和Goldschmidt已经证明,连通分量集合(视为适当归一化的带度量的紧致度量空间)依分布收敛到一个由随机实图构成的连续极限Gλ\mathcal{G}_\lambda。在本文中,我们主要考虑临界Erdős-Rényi随机图上的动态渗流。每对顶点附着一个强度为n1/3n^{-1/3}的泊松过程,每次触发时重新采样对应的边。在此过程下,连通分量集合发生并合和碎裂。我们证明,当nn趋于无穷时,该过程依分布收敛到连续极限Gλ\mathcal{G}_\lambda上的一个碎裂-并合过程。我们还证明了离散并合和碎裂过程的收敛性,并给出了与碎裂和并合相关的Feller型性质。

关键词

引用

@article{arxiv.1710.09101,
  title  = {Scaling limit of dynamical percolation on critical Erd\"os-R\'enyi random graphs},
  author = {Raphaël Rossignol},
  journal= {arXiv preprint arXiv:1710.09101},
  year   = {2020}
}

备注

The organization has changed. Some important mistakes have been corrected: - Now, the usual Skorokhod topology is used (cf. appendix A). - a mistake in Lemma 4.10 (iii) (old numbering) is corrected now in Lemma 5.9 (new numbering). - there was an error, now fixed, concerning the control of supdiam in section 5.4. - Lemma 2.5 (old numbering) as stated was false, a corrected version replaces it