arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1208.4014math.PR
收藏

二维临界渗流中最大团簇的大小

On the size of the largest cluster in 2D critical percolation

Jacob van den Berg, Rene Conijn

摘要:

我们考虑正方形格子上的(近)临界渗流。令M_n为盒子[-n,n]^2中包含的最大开放集群的大小,令pi(n)为从O到盒子边界存在开放路径的概率。众所周知,对于所有0< a < b,当n趋于无穷大时,M_n小于an^2 pi(n)的概率和M_n大于bn^2 pi(n)的概率都有界远离0。这是一个自然的问题,例如在研究所谓的冻结渗流过程时,如果M_n在an^2 pi(n)和bn^2 pi(n)之间的概率也有类似的结果,这是一个自然的问题。通过对盒子进行适当的划分,以及对积木进行仔细的构造,我们证明了这个问题的答案是肯定的。1/pi(n)的“次线性”似乎是论证的关键。

英文摘要:

We consider (near-)critical percolation on the square lattice. Let M_n be the size of the largest open cluster contained in the box [-n,n]^2, and let pi(n) be the probability that there is an open path from O to the boundary of the box. It is well-known that for all 0< a < b the probability that M_n is smaller than an^2 pi(n) and the probability that M_n is larger than bn^2 pi(n) are bounded away from 0 as n tends to infinity. It is a natural question, which arises for instance in the study of so-called frozen-percolation processes, if a similar result holds for the probability that M_n is between an^2 pi(n) and bn^2 pi(n). By a suitable partition of the box, and a careful construction involving the building blocks, we show that the answer to this question is affirmative. The `sublinearity' of 1/pi(n) appears to be essential for the argument.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑