{ "id": "1005.3766", "version": "v1", "published": "2010-05-20T17:35:11.000Z", "updated": "2010-05-20T17:35:11.000Z", "title": "Uniqueness in Law for the Allen-Cahn SPDE via Change of Measure", "authors": [ "Hassan Allouba" ], "comment": "6 pages, 1/9 papers of my 2000-2006 collection (preprint version)", "journal": "C. R. Acad. Sci. Paris S\\'er. I Math. 330 (2000), no. 5, 371-376", "doi": "10.1016/S0764-4442(00)00190-7", "categories": [ "math.PR", "math-ph", "math.AP", "math.MP" ], "abstract": "We start by first using change of measure to prove the transfer of uniqueness in law among pairs of parabolic SPDEs differing only by a drift function, under an almost sure $L^2$ condition on the drift/diffusion ratio. This is a considerably weaker condition than the usual Novikov one, and it allows us to prove uniqueness in law for the Allen-Cahn SPDE driven by space-time white noise with diffusion function $a(t,x,u)=Cu^\\gamma$, $1/2\\le\\gamma\\le1$ and $C\\ne0$. The same transfer result is also valid for ordinary SDEs and hyperbolic SPDEs.", "revisions": [ { "version": "v1", "updated": "2010-05-20T17:35:11.000Z" } ], "analyses": { "subjects": [ "60H15", "35A02" ], "keywords": [ "uniqueness", "space-time white noise", "allen-cahn spde driven", "diffusion function", "parabolic spdes" ], "tags": [ "journal article" ], "publication": { "journal": "Academie des Sciences Paris Comptes Rendus Serie Sciences Mathematiques", "year": 2000, "month": "Mar", "volume": 330, "number": 5, "pages": 371 }, "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2000CRASM.330..371A" } } }