English

Martin boundary of a killed non-centered random walk in a general cone

Probability 2020-06-30 v1

Abstract

We investigate Martin boundary for a non-centered random walk on Zd{\mathbb Z}^d killed up on the time τϑ\tau_\vartheta of the first exit from a convex cone with a vertex at 00. The approach combines large deviation estimates, the ratio limite theorem and the ladder height process. The results are applied to identify the Martin boundary for a random walk killed upon the first exit from a convex cone having C1C^1 boundary.

Keywords

Cite

@article{arxiv.2006.15870,
  title  = {Martin boundary of a killed non-centered random walk in a general cone},
  author = {Irina Ignatiouk-Robert},
  journal= {arXiv preprint arXiv:2006.15870},
  year   = {2020}
}