{ "id": "1510.00264", "version": "v1", "published": "2015-10-01T14:51:47.000Z", "updated": "2015-10-01T14:51:47.000Z", "title": "The L^2-torsion function and the Thurston norm of 3-manifolds", "authors": [ "Stefan Friedl", "Wolfgang Lück" ], "comment": "22 pages", "categories": [ "math.GT" ], "abstract": "Let M be an oriented irreducible 3-manifold with infinite fundamental group and empty or toroidal boundary. Consider any element \\phi in the first cohomology of M with integral coefficients. Then one can define the \\phi-twisted L^2-torsion function of the universal covering which is a function from the set of positive real numbers to the set of real numbers. By earlier work of the second author and Schick the evaluation at t=1 determines the volume. In this paper we show that its degree, which is a number extracted from its asymptotic behavior at 0 and at infinity, agrees with the Thurston norm of \\phi.", "revisions": [ { "version": "v1", "updated": "2015-10-01T14:51:47.000Z" } ], "analyses": { "keywords": [ "thurston norm", "infinite fundamental group", "first cohomology", "integral coefficients", "asymptotic behavior" ], "note": { "typesetting": "TeX", "pages": 22, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2015arXiv151000264F" } } }