arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0907.0316math.PR
收藏

瞬态赋权图上的交错渗流

Interlacement percolation on transient weighted graphs

Augusto Teixeira

摘要:

在本文中,我们首先扩展了由A.S. Sznitman在[arXiv:0704.2560],更一般的设置瞬态加权图。我们证明了该模型的Harris-FKG不等式,并分析了它在特定图类上的一些性质。对于非顺从图的情形,我们证明了空集渗流的临界值u * 是有限的。我们还证明了,当G满足等周不等式IS_6(见(1.5))时,u_* 对乘积G × Z(其中我们赋予Z单位权)是正的。当所考虑的图是一棵树时,我们能够用一个Bernoulli独立的渗流过程来刻画包含某些不动点的空簇。对于正则树的特殊情况,我们得到了临界值u_* 的一个显式公式。

英文摘要:

In this article, we first extend the construction of random interlacements, introduced by A.S. Sznitman in [arXiv:0704.2560], to the more general setting of transient weighted graphs. We prove the Harris-FKG inequality for this model and analyze some of its properties on specific classes of graphs. For the case of non-amenable graphs, we prove that the critical value u_* for the percolation of the vacant set is finite. We also prove that, once G satisfies the isoperimetric inequality IS_6 (see (1.5)), u_* is positive for the product GxZ (where we endow Z with unit weights). When the graph under consideration is a tree, we are able to characterize the vacant cluster containing some fixed point in terms of a Bernoulli independent percolation process. For the specific case of regular trees, we obtain an explicit formula for the critical value u_*.

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。

↑