English

Long Brownian bridges in hyperbolic spaces converge to Brownian trees

Probability 2016-09-08 v1

Abstract

We show that the range of a long Brownian bridge in the hyperbolic space converges after suitable renormalisation to the Brownian continuum random tree. This result is a relatively elementary consequence of \bullet A theorem by Bougerol and Jeulin, stating that the rescaled radial process converges to the normalized Brownian excursion, \bullet A property of invariance under re-rooting, \bullet The hyperbolicity of the ambient space in the sense of Gromov. A similar result is obtained for the rescaled infinite Brownian loop in hyperbolic space.

Keywords

Cite

@article{arxiv.1609.01907,
  title  = {Long Brownian bridges in hyperbolic spaces converge to Brownian trees},
  author = {Xinxin Chen and Grégory Miermont},
  journal= {arXiv preprint arXiv:1609.01907},
  year   = {2016}
}