English

Ordered random walks with heavy tails

Probability 2011-03-24 v1

Abstract

This note continues paper of Denisov and Wachtel (2010), where we have constructed a kk-dimensional random walk conditioned to stay in the Weyl chamber of type AA. The construction was done under the assumption that the original random walk has k1k-1 moments. In this note we continue the study of killed random walks in the Weyl chamber, and assume that the tail of increments is regularly varying of index α<k1\alpha<k-1. It appears that the asymptotic behaviour of random walks is different in this case. We determine the asymptotic behaviour of the exit time, and, using thisinformation, construct a conditioned process which lives on a partial compactification of the Weyl chamber.

Keywords

Cite

@article{arxiv.1103.4529,
  title  = {Ordered random walks with heavy tails},
  author = {Denis Denisov and Vitali Wachtel},
  journal= {arXiv preprint arXiv:1103.4529},
  year   = {2011}
}

Comments

20 pages

R2 v1 2026-06-21T17:43:29.409Z