{ "id": "0903.1470", "version": "v2", "published": "2009-03-09T01:39:55.000Z", "updated": "2010-09-04T04:10:43.000Z", "title": "The rational homotopy type of the space of self-equivalences of a fibration", "authors": [ "Yves Felix", "Gregory Lupton", "Samuel B. Smith" ], "comment": "27 pages", "categories": [ "math.AT" ], "abstract": "Let Aut(p) denote the topological monoid of self-fibre-homotopy equivalences of a fibration p:E\\to B. We make a general study of this monoid, especially in rational homotopy theory. When E and B are simply connected CW complexes with E finite, we identify the rational Samelson Lie algebra of the identity component of Aut(p) as the homology of a certain DG Lie algebra of derivations arising from the Koszul-Sullivan model of p. We obtain related identifications for the rational homotopy groups of fibrewise mapping spaces and for the rationalization of a natural nilpotent subgroup of Aut(p).", "revisions": [ { "version": "v2", "updated": "2010-09-04T04:10:43.000Z" } ], "analyses": { "subjects": [ "55P62", "55Q15" ], "keywords": [ "rational homotopy type", "self-equivalences", "rational samelson lie algebra", "rational homotopy theory", "dg lie algebra" ], "note": { "typesetting": "TeX", "pages": 27, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009arXiv0903.1470F" } } }