{ "id": "1211.7216", "version": "v1", "published": "2012-11-30T11:30:41.000Z", "updated": "2012-11-30T11:30:41.000Z", "title": "On the duality between jump processes on ultrametric spaces and random walks on trees", "authors": [ "Wolfgang Woess" ], "categories": [ "math.PR" ], "abstract": "The purpose of these notes is to clarify the duality between a natural class of jump processes on compact ultrametric spaces - studied in current work of Bendikov, Girgor'yan and Pittet - and nearest neighbour walks on trees. Processes of this type have appeared in recent work of Kigami. Every compact ultrametric space arises as the boundary of a locally finite tree. The duality arises via the Dirichlet forms: one on the tree associated with a random walk and the other on the boundary of the tree, which is given in terms of the Na\\\"im kernel. Here, it is explained that up to a linear time change by a unique constant, there is a one-to-one correspondence between the above processes and Dirichlet regular random walks.", "revisions": [ { "version": "v1", "updated": "2012-11-30T11:30:41.000Z" } ], "analyses": { "subjects": [ "05C05", "31C05", "60G50", "60J50" ], "keywords": [ "jump processes", "dirichlet regular random walks", "compact ultrametric space arises", "linear time change", "nearest neighbour walks" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1211.7216W" } } }