{ "id": "0910.4653", "version": "v1", "published": "2009-10-25T12:35:22.000Z", "updated": "2009-10-25T12:35:22.000Z", "title": "The Cauchy Problem of the Schrödinger-Korteweg-de Vries System", "authors": [ "Yifei Wu" ], "comment": "38 pages,1 figure", "journal": "Differential and Integral Equations, 23 (2010), 569-600", "categories": [ "math.AP" ], "abstract": "We study the Cauchy problem of the Schr\\\"odinger-Korteweg-de Vries system. First, we establish the local well-posedness results, which improve the results of Corcho, Linares (2007). Moreover, we obtain some ill-posedness results, which show that they are sharp in some well-posedness thresholds. Particularly, we obtain the local well-posedness for the initial data in $H^{-{3/16}+}(\\R)\\times H^{-{3/4}+}(\\R)$ in the resonant case, it is almost the optimal except the endpoint. At last we establish the global well-posedness results in $H^s(\\R)\\times H^s(\\R)$ when $s>\\dfrac{1}{2}$ no matter in the resonant case or in the non-resonant case, which improve the results of Pecher (2005).", "revisions": [ { "version": "v1", "updated": "2009-10-25T12:35:22.000Z" } ], "analyses": { "subjects": [ "35Q53", "35Q55" ], "keywords": [ "schrödinger-korteweg-de vries system", "cauchy problem", "local well-posedness results", "global well-posedness results", "ill-posedness results" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 38, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009arXiv0910.4653W" } } }