Infinitely many collisions between a recurrent simple random walk and arbitrary many transient random walks in a subballistic random environment
Abstract
We consider random walks , , in the same random environment in , and a recurrent simple random walk on . We assume that, conditionally on the environment , all the random walks are independent and start from even initial locations. Our assumption on the law of the environment is such that a single random walk in the environment is transient to the right but subballistic, with parameter . We show that - for every value of - there are almost surely infinitely many times for which all these random walks, and , , are simultaneously at the same location, even though one of them is recurrent and the others ones are transient.
Keywords
Cite
@article{arxiv.2504.15999,
title = {Infinitely many collisions between a recurrent simple random walk and arbitrary many transient random walks in a subballistic random environment},
author = {Alexis Devulder},
journal= {arXiv preprint arXiv:2504.15999},
year = {2025}
}
Comments
11 pages ; applying and extending some results of arXiv:1811.12763 ; to appear in Electronic Communications in Probability