{ "id": "1301.1221", "version": "v1", "published": "2013-01-07T15:06:27.000Z", "updated": "2013-01-07T15:06:27.000Z", "title": "The Obstacle Problem for Quasilinear Stochastic PDEs with non-homogeneous operator", "authors": [ "Denis Laurent", "Matoussi Anis", "Zhang Jing" ], "comment": "19 pages. arXiv admin note: substantial text overlap with arXiv:1202.3296, arXiv:1210.3445, arXiv:1201.1092", "categories": [ "math.PR" ], "abstract": "We prove the existence and uniqueness of solution of the obstacle problem for quasilinear Stochastic PDEs with non-homogeneous second order operator. Our method is based on analytical technics coming from the parabolic potential theory. The solution is expressed as a pair $(u,\\nu)$ where $u$ is a predictable continuous process which takes values in a proper Sobolev space and $\\nu$ is a random regular measure satisfying minimal Skohorod condition. Moreover, we establish a maximum principle for local solutions of such class of stochastic PDEs. The proofs are based on a version of It\\^o's formula and estimates for the positive part of a local solution which is non-positive on the lateral boundary.", "revisions": [ { "version": "v1", "updated": "2013-01-07T15:06:27.000Z" } ], "analyses": { "subjects": [ "60H15", "35R60" ], "keywords": [ "quasilinear stochastic pdes", "obstacle problem", "non-homogeneous operator", "local solution", "measure satisfying minimal skohorod condition" ], "note": { "typesetting": "TeX", "pages": 19, "language": "en", "license": "arXiv", "status": "editable" } } }