{ "id": "1612.05983", "version": "v1", "published": "2016-12-18T20:25:25.000Z", "updated": "2016-12-18T20:25:25.000Z", "title": "Nonexistence of fractional Brownian fields indexed by cylinders", "authors": [ "Nil Venet" ], "comment": "23 pages", "categories": [ "math.PR" ], "abstract": "We show in this paper that there exists no $H$-fractional Brownian field indexed by the cylinder $\\mathbb{S}^1 \\times ]0,\\varepsilon[$ endowed with its product distance for any $\\varepsilon>0$ and $H>0$. As a consequence we show that the fractional index of a compact metric space is not continuous with respect to the Gromov-Hausdorff convergence. The result holds for Riemannian products with a minimal closed geodesic. We also investigate the case of the cylinder endowed with a distance asymptotically close to the product distance in the neighbourhood of a circle.", "revisions": [ { "version": "v1", "updated": "2016-12-18T20:25:25.000Z" } ], "analyses": { "keywords": [ "fractional brownian field", "product distance", "nonexistence", "compact metric space", "distance asymptotically close" ], "note": { "typesetting": "TeX", "pages": 23, "language": "en", "license": "arXiv", "status": "editable" } } }