{ "id": "1503.08006", "version": "v1", "published": "2015-03-27T09:59:23.000Z", "updated": "2015-03-27T09:59:23.000Z", "title": "A splitting theorem for good complexifications", "authors": [ "Indranil Biswas", "Mahan Mj", "A. J. Parameswaran" ], "comment": "13 pgs no figs", "categories": [ "math.GT", "math.AG", "math.GR" ], "abstract": "The purpose of this paper is to produce restrictions on fundamental groups of manifolds admitting good complexifications by proving the following Cheeger-Gromoll type splitting theorem: Any closed manifold $M$ admitting a good complexification has a finite-sheeted regular covering $M_1$ such that $M_1$ admits a fiber bundle structure with base $(S^1)^k$ and fiber $N$ that admits a good complexification and also has zero virtual first Betti number. We give several applications to manifolds of dimension at most 5.", "revisions": [ { "version": "v1", "updated": "2015-03-27T09:59:23.000Z" } ], "analyses": { "subjects": [ "14P25", "57M05", "14F35", "20F65" ], "keywords": [ "complexification", "zero virtual first betti number", "cheeger-gromoll type splitting theorem", "fiber bundle structure", "fundamental groups" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }