{ "id": "math/0410311", "version": "v1", "published": "2004-10-13T07:53:40.000Z", "updated": "2004-10-13T07:53:40.000Z", "title": "Branching Processes, and Random-Cluster Measures on Trees", "authors": [ "Geoffrey Grimmett", "Svante Janson" ], "categories": [ "math.PR", "math-ph", "math.MP" ], "abstract": "Random-cluster measures on infinite regular trees are studied in conjunction with a general type of `boundary condition', namely an equivalence relation on the set of infinite paths of the tree. The uniqueness and non-uniqueness of random-cluster measures are explored for certain classes of equivalence relations. In proving uniqueness, the following problem concerning branching processes is encountered and answered. Consider bond percolation on the family-tree $T$ of a branching process. What is the probability that every infinite path of $T$, beginning at its root, contains some vertex which is itself the root of an infinite open sub-tree?", "revisions": [ { "version": "v1", "updated": "2004-10-13T07:53:40.000Z" } ], "analyses": { "subjects": [ "60K35", "60J80", "82B20" ], "keywords": [ "random-cluster measures", "infinite path", "equivalence relation", "infinite open sub-tree", "infinite regular trees" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2004math.....10311G" } } }