{ "id": "1507.05202", "version": "v1", "published": "2015-07-18T16:22:16.000Z", "updated": "2015-07-18T16:22:16.000Z", "title": "Couplings of Brownian Motions of deterministic distance in the Euclidean space and on the sphere", "authors": [ "Mihai N. Pascu", "Ionel Popescu" ], "categories": [ "math.PR" ], "abstract": "We obtain a characterization of all co-adapted couplings of Brownian motions in the Euclidean space and on the unit spheres in Euclidean spaces whose distance process is deterministic. More precisely, we show that there exists a co-adapted coupling of Brownian motions on these spaces for which the distance between the processes is a deterministic function if and only if the given function is continuous and satisfies almost everywhere a certain differential inequality.", "revisions": [ { "version": "v1", "updated": "2015-07-18T16:22:16.000Z" } ], "analyses": { "keywords": [ "euclidean space", "brownian motions", "deterministic distance", "unit spheres", "distance process" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2015arXiv150705202P" } } }