{ "id": "2006.04743", "version": "v1", "published": "2020-06-08T16:46:17.000Z", "updated": "2020-06-08T16:46:17.000Z", "title": "Barycentric Brownian Bees", "authors": [ "Louigi Addario-Berry", "Jessica Lin", "Thomas Tendron" ], "comment": "34 pages", "categories": [ "math.PR" ], "abstract": "We establish an invariance principle for the barycenter of a Brunet-Derrida particle system in $d$ dimensions. The model consists of $N$ particles undergoing dyadic branching Brownian motion with rate $1$. At a branching event, the number of particles is kept equal to $N$ by removing the particle located furthest away from the barycenter. To prove the invariance principle, a key step is to establish Harris recurrence for the process viewed from its barycenter.", "revisions": [ { "version": "v1", "updated": "2020-06-08T16:46:17.000Z" } ], "analyses": { "subjects": [ "60K35", "60J70", "60J65" ], "keywords": [ "barycentric brownian bees", "invariance principle", "undergoing dyadic branching brownian motion", "particles undergoing dyadic branching brownian", "brunet-derrida particle system" ], "note": { "typesetting": "TeX", "pages": 34, "language": "en", "license": "arXiv", "status": "editable" } } }