{ "id": "1709.04373", "version": "v1", "published": "2017-09-13T15:13:32.000Z", "updated": "2017-09-13T15:13:32.000Z", "title": "Families of invariant tori in KAM theory: interplay of integer characteristics", "authors": [ "Mikhail B. Sevryuk" ], "comment": "19 pages", "categories": [ "math.DS" ], "abstract": "The purpose of this brief note is twofold. First, we summarize in a very concise form the principal information on Whitney smooth families of quasi-periodic invariant tori in various contexts of KAM theory. Our second goal is to attract (via an informal discussion and a simple example) the experts' attention to the peculiarities of the so-called excitation of elliptic normal modes in the reversible context 2.", "revisions": [ { "version": "v1", "updated": "2017-09-13T15:13:32.000Z" } ], "analyses": { "subjects": [ "37J40", "70H08", "70H33", "70K43" ], "keywords": [ "kam theory", "integer characteristics", "quasi-periodic invariant tori", "elliptic normal modes", "whitney smooth families" ], "note": { "typesetting": "TeX", "pages": 19, "language": "en", "license": "arXiv", "status": "editable" } } }