{ "id": "2012.04413", "version": "v1", "published": "2020-12-08T13:11:51.000Z", "updated": "2020-12-08T13:11:51.000Z", "title": "On spectral and orbital stability for the Klein--Gordon equation coupled to an anharmonic oscillator", "authors": [ "Andrew Comech", "Elena A. Kopylova" ], "comment": "23 pages", "categories": [ "math.AP" ], "abstract": "We obtain explicit characterization of spectral and orbital stability of solitary wave solutions to the $\\mathbf{U}(1)$-invariant Klein--Gordon equation in one spatial dimension coupled to an anharmonic oscillator. We also give the complete analysis of the spectrum of the linearization at a solitary wave.", "revisions": [ { "version": "v1", "updated": "2020-12-08T13:11:51.000Z" } ], "analyses": { "keywords": [ "orbital stability", "anharmonic oscillator", "solitary wave solutions", "invariant klein-gordon equation", "explicit characterization" ], "note": { "typesetting": "TeX", "pages": 23, "language": "en", "license": "arXiv", "status": "editable" } } }