English

The oscillating random walk on $\mathbb{Z}$

Probability 2022-01-06 v1

Abstract

The paper is concerned with a new approach for the recurrence property of the oscillating process on Z\mathbb{Z} in Kemperman's sense. In the case when the random walk is ascending on Z\mathbb{Z}^- and descending on Z+\mathbb{Z}^+, we determine the invariant measure of the embedded process of successive crossing times and then prove a necessary and sufficient condition for recurrence. Finally, we make use of this result to show that the general oscillating process is recurrent under some H{\"o}lder-typed moment assumptions.

Keywords

Cite

@article{arxiv.2201.01515,
  title  = {The oscillating random walk on $\mathbb{Z}$},
  author = {D Vo},
  journal= {arXiv preprint arXiv:2201.01515},
  year   = {2022}
}
R2 v1 2026-06-24T08:40:39.913Z