Spread rate of branching Brownian motions
Probability
2017-11-28 v1
Abstract
We find the exponential growth rate of the population outside a ball with time dependent radius for a branching Brownian motion in Euclidean space. We then see that the upper bound of the particle range is determined by the principal eigenvalue of the Schr\"odinger type operator associated with the branching rate measure and branching mechanism. We assume that the branching rate measure is small enough at infinity, and can be singular with respect to the Lebesgue measure. We finally apply our results to several concrete models.
Keywords
Cite
@article{arxiv.1711.09657,
title = {Spread rate of branching Brownian motions},
author = {Yuichi Shiozawa},
journal= {arXiv preprint arXiv:1711.09657},
year = {2017}
}
Comments
This paper is accepted for publication to Acta Applicandae Mathematicae