{ "id": "1705.04206", "version": "v1", "published": "2017-05-10T12:36:06.000Z", "updated": "2017-05-10T12:36:06.000Z", "title": "Nonlinear stability of Gardner breathers", "authors": [ "Miguel A. Alejo" ], "comment": "30 pages, 2 figs. Submitted. arXiv admin note: substantial text overlap with arXiv:1206.3157", "categories": [ "math.AP" ], "abstract": "We show that breather solutions of the Gardner equation, a natural generalization of the KdV and mKdV equations, are globally stable in a \\emph{natural} $H^2$ topology. Our proof presentsa systematic and simple account that put in evidence that the Gardner breather solutions satisfy a suitable variational elliptic equation, which also implies that the stability problem reduces in some sense to $(i)$ the study of the spectrum of explicit linear systems (\\emph{spectral stability}), and $(ii)$ the understanding of how degenerated directions can be controlled using low regularity conservation laws.", "revisions": [ { "version": "v1", "updated": "2017-05-10T12:36:06.000Z" } ], "analyses": { "subjects": [ "35Q51", "35Q53", "37K10", "37K40" ], "keywords": [ "nonlinear stability", "low regularity conservation laws", "gardner breather solutions satisfy", "explicit linear systems", "stability problem reduces" ], "note": { "typesetting": "TeX", "pages": 30, "language": "en", "license": "arXiv", "status": "editable" } } }