{ "id": "1506.02895", "version": "v1", "published": "2015-06-09T13:13:52.000Z", "updated": "2015-06-09T13:13:52.000Z", "title": "Renewal structure and local time for diffusions in random environment", "authors": [ "Pierre Andreoletti", "Grégoire Vechambre", "Alexis Devulder" ], "comment": "39 pages", "categories": [ "math.PR" ], "abstract": "We study a one-dimensional diffusion $X$ in a drifted Brownian potential $W\\_\\kappa$, with $ 0\\textless{}\\kappa\\textless{}1$, and focus on the behavior of the local times $(\\mathcal{L}(t,x),x)$ of $X$ before time $t\\textgreater{}0$. In particular we characterize the limit law of the supremum of the local time, as well as the position of the favorite sites. These limits can be written explicitly from a two dimensional stable L{\\'e}vy process. Our analysis is based on the study of an extension of the renewal structure which is deeply involved in the asymptotic behavior of $X$.", "revisions": [ { "version": "v1", "updated": "2015-06-09T13:13:52.000Z" } ], "analyses": { "keywords": [ "local time", "renewal structure", "random environment", "vy process", "one-dimensional diffusion" ], "note": { "typesetting": "TeX", "pages": 39, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2015arXiv150602895A" } } }