{ "id": "0801.2678", "version": "v1", "published": "2008-01-17T14:00:38.000Z", "updated": "2008-01-17T14:00:38.000Z", "title": "On asymptotic stability in 3D of kinks for the $φ^4$ model", "authors": [ "Scipio Cuccagna" ], "comment": "To appear on Transactions of the American Mathematical Society", "categories": [ "math.AP" ], "abstract": "We add to a kink, which is a 1 dimensional structure, two transversal directions. We then check its asymptotic stability with respect to compactly supported perturbations in 3D and a time evolution under a Nonlinear Wave Equation (NLW). The problem is inspired by work by Jack Xin on asymptotic stability in dimension larger than 1 of fronts for reaction diffusion equations. The proof involves a separation of variables. The transversal variables are treated as in work on Nonlinear Klein Gordon Equation (NLKG) originating from Klainerman and from Shatah in a particular elaboration due to Delort and others. The longitudinal variable is treated by means of a result by Weder on dispersion for Schroedinger operators in 1D.", "revisions": [ { "version": "v1", "updated": "2008-01-17T14:00:38.000Z" } ], "analyses": { "keywords": [ "asymptotic stability", "nonlinear klein gordon equation", "reaction diffusion equations", "nonlinear wave equation", "dimension larger" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }