{ "id": "1108.5975", "version": "v1", "published": "2011-08-30T15:06:00.000Z", "updated": "2011-08-30T15:06:00.000Z", "title": "KAM theory for lower dimensional tori within the reversible context 2", "authors": [ "Mikhail B. Sevryuk" ], "comment": "21 pages; dedicated to the memory of Vladimir Igorevich Arnold who is so unexpectedly gone", "journal": "Moscow Math. J., 2012, v. 12, N 2, pp. 435-455", "categories": [ "math.DS" ], "abstract": "The reversible context 2 in KAM theory refers to the situation where dim Fix G < (1/2) codim T, here Fix G is the fixed point manifold of the reversing involution G and T is the invariant torus one deals with. Up to now, the persistence of invariant tori in the reversible context 2 has been only explored in the extreme particular case where dim Fix G = 0 [M. B. Sevryuk, Regul. Chaotic Dyn. 16 (2011), no. 1-2, 24-38]. We obtain a KAM-type result for the reversible context 2 in the general situation where the dimension of Fix G is arbitrary. As in the case where dim Fix G = 0, the main technical tool is J. Moser's modifying terms theorem of 1967.", "revisions": [ { "version": "v1", "updated": "2011-08-30T15:06:00.000Z" } ], "analyses": { "subjects": [ "70K43", "70H33" ], "keywords": [ "reversible context", "lower dimensional tori", "dim fix", "invariant torus", "kam theory refers" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 21, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1108.5975S" } } }