{ "id": "2405.11845", "version": "v1", "published": "2024-05-20T07:38:51.000Z", "updated": "2024-05-20T07:38:51.000Z", "title": "Speed of Random Walks in Dirichlet Environment on a Galton-Watson Tree", "authors": [ "Dongjian Qian", "Yang Xiao" ], "categories": [ "math.PR" ], "abstract": "This paper deals with a transient random walk in Dirichlet environment, or equivalently a linearly edge reinforced random walk, on a Galton-Watson tree. We compute the stationary distribution of the environment seen from the particle of an edge reinforced random walk. We obtain a formula for the speed and give a necessary and sufficient condition for the walk to have a positive speed under some moment conditions on the offspring distribution of the tree.", "revisions": [ { "version": "v1", "updated": "2024-05-20T07:38:51.000Z" } ], "analyses": { "subjects": [ "60K37", "60K35", "60J80", "60F15" ], "keywords": [ "galton-watson tree", "dirichlet environment", "linearly edge reinforced random walk", "transient random walk", "moment conditions" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }