{ "id": "math/0605314", "version": "v1", "published": "2006-05-11T19:18:15.000Z", "updated": "2006-05-11T19:18:15.000Z", "title": "A unified Witten-Reshetikhin-Turaev invariant for integral homology spheres", "authors": [ "Kazuo Habiro" ], "comment": "66 pages, 8 figures", "doi": "10.1007/s00222-007-0071-0", "categories": [ "math.GT", "math.QA" ], "abstract": "We construct an invariant J_M of integral homology spheres M with values in a completion \\hat{Z[q]} of the polynomial ring Z[q] such that the evaluation at each root of unity \\zeta gives the the SU(2) Witten-Reshetikhin-Turaev invariant \\tau_\\zeta(M) of M at \\zeta. Thus J_M unifies all the SU(2) Witten-Reshetikhin-Turaev invariants of M. As a consequence, \\tau_\\zeta(M) is an algebraic integer. Moreover, it follows that \\tau_\\zeta(M) as a function on \\zeta behaves like an ``analytic function'' defined on the set of roots of unity. That is, the \\tau_\\zeta(M) for all roots of unity are determined by a \"Taylor expansion\" at any root of unity, and also by the values at infinitely many roots of unity of prime power orders. In particular, \\tau_\\zeta(M) for all roots of unity are determined by the Ohtsuki series, which can be regarded as the Taylor expansion at q=1.", "revisions": [ { "version": "v1", "updated": "2006-05-11T19:18:15.000Z" } ], "analyses": { "subjects": [ "57M27", "17B37" ], "keywords": [ "integral homology spheres", "unified witten-reshetikhin-turaev invariant", "taylor expansion", "prime power orders", "algebraic integer" ], "tags": [ "journal article" ], "publication": { "journal": "Inventiones Mathematicae", "year": 2007, "month": "Sep", "volume": 171, "number": 1, "pages": 1 }, "note": { "typesetting": "TeX", "pages": 66, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2007InMat.171....1H" } } }