English

How universal are asymptotics of disconnection times in discrete cylinders?

Probability 2009-09-29 v1

Abstract

We investigate the disconnection time of a simple random walk in a discrete cylinder with a large finite connected base. In a recent article of A. Dembo and the author it was found that for large NN the disconnection time of GN×ZG_N\times\mathbb{Z} has rough order GN2|G_N|^2, when GN=(Z/NZ)dG_N=(\mathbb{Z}/N\mathbb{Z})^d. In agreement with a conjecture by I. Benjamini, we show here that this behavior has broad generality when the bases of the discrete cylinders are large connected graphs of uniformly bounded degree.

Keywords

Cite

@article{arxiv.0712.1497,
  title  = {How universal are asymptotics of disconnection times in discrete cylinders?},
  author = {Alain-Sol Sznitman},
  journal= {arXiv preprint arXiv:0712.1497},
  year   = {2009}
}

Comments

Published in at http://dx.doi.org/10.1214/009117907000000114 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)