{ "id": "math/0504223", "version": "v1", "published": "2005-04-11T14:43:24.000Z", "updated": "2005-04-11T14:43:24.000Z", "title": "Roots of 3-manifolds and cobordisms", "authors": [ "C. Hog-Angeloni", "S. Matveev" ], "comment": "11 pages, 3 figures", "categories": [ "math.GT" ], "abstract": "Given a set of simplifying moves on 3-manifolds, we apply them to a given 3-manifold M as long as possible. What we get is a root of M. For us, it makes sense to consider three types of moves: compressions along 2-spheres, proper discs and proper annuli having boundary circles in different components of the boundary of M. Our main result is that for the above moves the root of any 3-manifold exists and is unique. The same result remains true if instead of manifolds we apply the moves to 3-cobordisms.", "revisions": [ { "version": "v1", "updated": "2005-04-11T14:43:24.000Z" } ], "analyses": { "subjects": [ "57M27" ], "keywords": [ "cobordisms", "result remains true", "main result", "proper discs", "boundary circles" ], "note": { "typesetting": "TeX", "pages": 11, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2005math......4223H" } } }