{ "id": "1712.03768", "version": "v1", "published": "2017-12-11T13:44:55.000Z", "updated": "2017-12-11T13:44:55.000Z", "title": "Dynamics of the nonlinear Klein-Gordon equation in the nonrelativistic limit, II", "authors": [ "Stefano Pasquali" ], "categories": [ "math.AP", "math-ph", "math.MP" ], "abstract": "We study the the nonlinear Klein-Gordon (NLKG) equation on a manifold $M$ in the nonrelativistic limit, namely as the speed of light $c$ tends to infinity. In particular, we consider an order-$r$ normalized approximation of NLKG (which corresponds to the NLS at order $r=1$), and prove that when $M=\\mathbb{R}^d$, $d \\geq 2$, small radiation solutions of the order-$r$ normalized equation approximate solutions of the nonlinear NLKG up to times of order $\\mathcal{O}(c^{2(r-1)})$.", "revisions": [ { "version": "v1", "updated": "2017-12-11T13:44:55.000Z" } ], "analyses": { "keywords": [ "nonlinear klein-gordon equation", "nonrelativistic limit", "small radiation solutions", "normalized equation approximate solutions", "nonlinear nlkg" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }