{ "id": "1506.00470", "version": "v1", "published": "2015-06-01T12:26:04.000Z", "updated": "2015-06-01T12:26:04.000Z", "title": "Global well-posedness of the 2D Boussinesq equations with fractional Laplacian dissipation", "authors": [ "Zhuan Ye", "Xiaojing Xu" ], "comment": "17 pages", "categories": [ "math.AP" ], "abstract": "Abstract: As a continuation of the previous work [40], in this paper we focus on the Cauchy problem of the two-dimensional (2D) incompressible Boussinesq equations with fractional Laplacian dissipation. We give an elementary proof of the global regularity of the smooth solutions of the 2D Boussinesq equations with a new range of fractional powers of the Laplacian. The argument is based on the nonlinear lower bounds for the fractional Laplacian established in [12]. Consequently, this result significantly improves the recent works [12, 38, 40].", "revisions": [ { "version": "v1", "updated": "2015-06-01T12:26:04.000Z" } ], "analyses": { "subjects": [ "35Q35", "35B65", "76D03" ], "keywords": [ "fractional laplacian dissipation", "2d boussinesq equations", "global well-posedness", "nonlinear lower bounds", "global regularity" ], "note": { "typesetting": "TeX", "pages": 17, "language": "en", "license": "arXiv", "status": "editable" } } }