Reversibility of the non-backtracking random walk
Probability
2019-12-24 v2
Abstract
Let be a connected graph of uniformly bounded degree. A non-backtracking random walk (-NBRW) on evolves according to the following rule: Given , at time the walk picks at random some edge which is incident to that was not crossed in the last steps and moves to its other end-point. If no such edge exists then it makes a simple random walk step. Assume that for some every ball of radius in contains a simple cycle of length at least . We show that under some "nice" random time change the -NBRW becomes reversible. This is used to prove that it is recurrent iff the simple random walk is.
Cite
@article{arxiv.1707.01601,
title = {Reversibility of the non-backtracking random walk},
author = {Jonathan Hermon},
journal= {arXiv preprint arXiv:1707.01601},
year = {2019}
}
Comments
34 pages. Some proofs that were previously omitted were added