2004/04/02 by Robin Pemantle
Mathematics · #math.PR
published as Proc. Sem. Stoch. Pro. 1992, Burdzy and Bass, editors, 221 - 240 (1993) · 19 pages
arxiv created 2004/04/02 · arxiv updated 2009/12/01
This paper studies the behavior of RWRE on trees in the critical case left open in previous work. For trees of exponential growth, a random perturbation of the transition probabilities can change a transient random walk into a recurrent one. This is the opposite of what occurs on trees of sub-exponential growth.