{ "id": "1509.05677", "version": "v1", "published": "2015-09-18T15:59:03.000Z", "updated": "2015-09-18T15:59:03.000Z", "title": "Martin kernels for Markov processes with jumps", "authors": [ "Tomasz Juszczyszyn", "Mateusz Kwaƛnicki" ], "comment": "20 pages", "categories": [ "math.PR" ], "abstract": "We prove existence of boundary limits of ratios of positive harmonic functions for a wide class of Markov processes with jumps and irregular domains, in the context of general metric measure spaces. As a corollary, we prove uniqueness of the Martin kernel at each boundary point, that is, we identify the Martin boundary with the topological boundary. We also prove a Martin representation theorem for harmonic functions. Examples covered by our results include: strictly stable L\\'evy processes in R^d with positive continuous density of the L\\'evy measure; stable-like processes in R^d and in domains; and stable-like subordinate diffusions in metric measure spaces.", "revisions": [ { "version": "v1", "updated": "2015-09-18T15:59:03.000Z" } ], "analyses": { "keywords": [ "martin kernel", "markov processes", "harmonic functions", "general metric measure spaces", "martin representation theorem" ], "note": { "typesetting": "TeX", "pages": 20, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2015arXiv150905677J" } } }