{ "id": "2009.13005", "version": "v1", "published": "2020-09-28T01:26:00.000Z", "updated": "2020-09-28T01:26:00.000Z", "title": "Delayed blow-up by transport noise", "authors": [ "Franco Flandoli", "Lucio Galeati", "Dejun Luo" ], "comment": "28 pages", "categories": [ "math.PR", "math.AP" ], "abstract": "For some deterministic nonlinear PDEs on the torus whose solutions may blow up in finite time, we show that, under suitable conditions on the nonlinear term, the blow-up is delayed by multiplicative noise of transport type in a certain scaling limit. The main result is applied to the 3D Keller-Segel, 3D Fisher-KPP and 2D Kuramoto-Sivashinsky equations, yielding long-time existence for large initial data with high probability.", "revisions": [ { "version": "v1", "updated": "2020-09-28T01:26:00.000Z" } ], "analyses": { "keywords": [ "transport noise", "delayed blow-up", "deterministic nonlinear pdes", "large initial data", "2d kuramoto-sivashinsky equations" ], "note": { "typesetting": "TeX", "pages": 28, "language": "en", "license": "arXiv", "status": "editable" } } }