Asymptotic direction for random walks in random environments

Details Asymptotic direction for random walks in random environments Asymptotic direction for random walks in random environments

2005-12-16

arxiv.org/abs/math/0512388v2

Annales de l'Institut Henri Poincare (B) Probability and Statistics, Volume 43, Issue 6, November-December 2007, Pages 751-761

Mathematics

Probability

revised version

Scientific paper

In this paper we study the property of asymptotic direction for random walks in random i.i.d. environments (RWRE). We prove that if the set of directions where the walk is transient is non empty and open, the walk admits an asymptotic direction. The main tool to obtain this result is the construction of a renewal structure with cones. We also prove that RWRE admits at most two opposite asymptotic directions.

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