{ "id": "math/0104042", "version": "v1", "published": "2001-04-03T15:52:28.000Z", "updated": "2001-04-03T15:52:28.000Z", "title": "Homology cobordism and classical knot invariants", "authors": [ "Christian Bohr", "Ronnie Lee" ], "categories": [ "math.GT" ], "abstract": "In this paper we define and investigate Z/2-homology cobordism invariants of Z/2-homology 3-spheres which turn out to be related to classical invariants of knots. As an application we show that many lens spaces have infinite order in the Z/2-homology cobordism group and we prove a lower bound for the slice genus of a knot on which integral surgery yields a given Z/2-homology sphere. We also give some new examples of 3-manifolds which cannot be obtained by integral surgery on a knot.", "revisions": [ { "version": "v1", "updated": "2001-04-03T15:52:28.000Z" } ], "analyses": { "subjects": [ "57M27", "57R90" ], "keywords": [ "classical knot invariants", "homology cobordism", "integral surgery yields", "slice genus", "cobordism group" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2001math......4042B" } } }