{ "id": "1402.4560", "version": "v3", "published": "2014-02-19T05:55:39.000Z", "updated": "2014-10-11T01:32:11.000Z", "title": "Remark on Luo-Hou's ansatz for a self-similar solution to the 3D Euler equations", "authors": [ "Dongho Chae", "Tai-Peng Tsai" ], "comment": "9 pages(to appear in the Journal of Nonlinear Science)", "categories": [ "math.AP" ], "abstract": "In this note we show that Luo-Hou's ansatz for the self-similar solution to the axisymmetric solution to the 3D Euler equations leads to triviality of the solution under suitable decay condition of the blow-up profile. The equations for the blow-up profile reduces to an over-determined system of partial differential equations, whose only solution with decay is the trivial solution. We also propose a generalization of Luo-Hou's ansatz. Using the vanishing of the normal velocity at the boundary, we show that this generalized self-similar ansatz also leads to a trivial solution. These results show that the self-similar ansatz may be valid either only in a time-dependent region which shrinks to the boundary circle at the self-similar rate, or under different boundary conditions at spatial infinity of the self-similar profile.", "revisions": [ { "version": "v2", "updated": "2014-03-06T07:31:25.000Z", "abstract": "In this note we show that Luo-Hou's ansatz for the self-similar solution to the axisymmetric solution to the 3D Euler equations leads to triviality of the solution under a mild decay condition of the blow-up profile. The equations for the blow-up profile reduces to an over-determined system of partial differential equations, whose only solution with decay is the trivial solution. We also propose a natural generalization of Luo-Hou's ansatz. Using the vanishing of the normal velocity at the boundary, we show that this generalized self-similar ansatz also leads to a trivial solution.", "comment": "8 pages", "journal": null, "doi": null }, { "version": "v3", "updated": "2014-10-11T01:32:11.000Z" } ], "analyses": { "subjects": [ "35Q31", "76B03" ], "keywords": [ "3d euler equations", "luo-hous ansatz", "self-similar solution", "trivial solution", "mild decay condition" ], "tags": [ "journal article" ], "publication": { "doi": "10.1007/s00332-014-9225-6", "journal": "Journal of NonLinear Science", "year": 2015, "month": "Feb", "volume": 25, "number": 1, "pages": 193 }, "note": { "typesetting": "TeX", "pages": 9, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2015JNS....25..193C" } } }