{ "id": "1107.3629", "version": "v1", "published": "2011-07-19T05:56:10.000Z", "updated": "2011-07-19T05:56:10.000Z", "title": "Stability of bound states of Hamiltonian PDEs in the degenerate cases", "authors": [ "Masaya Maeda" ], "comment": "16 pages", "categories": [ "math.AP" ], "abstract": "We consider a Hamiltonian systems which is invariant under a one-parameter unitary group. We give a criterion for the stability and instability of bound states for the degenerate case. We apply our theorem to the single power nonlinear Klein-Gordon equation and the double power nonlinear Schr\\\"odinger equation.", "revisions": [ { "version": "v1", "updated": "2011-07-19T05:56:10.000Z" } ], "analyses": { "keywords": [ "degenerate case", "bound states", "hamiltonian pdes", "single power nonlinear klein-gordon equation", "one-parameter unitary group" ], "note": { "typesetting": "TeX", "pages": 16, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1107.3629M" } } }