Limit theorems for additive functionals of random walks in random scenery
Dynamical Systems
2021-01-05 v1 Probability
Abstract
We study the asymptotic behaviour of additive functionals of random walks in random scenery. We establish bounds for the moments of the local time of the Kesten and Spitzer process.These bounds combined with a previous moment convergence result (and an ergodicity result) imply the convergence in distribution of additive observables (with a normalization in n^(1/4)).When the sum of the observable is null, the previous limit vanishes and we prove the convergence in the sense of moments (with a normalization in n^(1/8)).
Cite
@article{arxiv.2101.00890,
title = {Limit theorems for additive functionals of random walks in random scenery},
author = {Françoise Pene},
journal= {arXiv preprint arXiv:2101.00890},
year = {2021}
}