{ "id": "1805.03764", "version": "v1", "published": "2018-05-10T00:48:21.000Z", "updated": "2018-05-10T00:48:21.000Z", "title": "Capacities, removable sets and $L^p$-uniqueness on Wiener spaces", "authors": [ "Michael Hinz", "Seunghyun Kang" ], "categories": [ "math.FA", "math.PR" ], "abstract": "We prove the equivalence of two different types of capacities in abstract Wiener spaces. This yields a criterion for the $L^p$-uniqueness of the Ornstein-Uhlenbeck operator and its integer powers defined on suitable algebras of functions vanishing in a neighborhood of a given closed set $\\Sigma$ of zero Gaussian measure. To prove the equivalence we show the $W^{r,p}(B,\\mu)$-boundedness of certain smooth nonlinear truncation operators acting on potentials of nonnegative functions. We also give connections to Gaussian Hausdorff measures. Roughly speaking, if $L^p$-uniqueness holds then the 'removed' set $\\Sigma$ must have sufficiently large codimension, in the case of the Ornstein-Uhlenbeck operator for instance at least $2p$.", "revisions": [ { "version": "v1", "updated": "2018-05-10T00:48:21.000Z" } ], "analyses": { "subjects": [ "28A12", "31E05", "31C15", "35J25", "35J40", "47B25", "47B38", "47N30", "60H07", "60J45" ], "keywords": [ "removable sets", "uniqueness", "capacities", "ornstein-uhlenbeck operator", "zero gaussian measure" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }