{ "id": "math/0404162", "version": "v3", "published": "2004-04-07T12:18:28.000Z", "updated": "2005-10-28T11:34:57.000Z", "title": "Rohlin's invariant and gauge theory III. Homology 4--tori", "authors": [ "Daniel Ruberman", "Nikolai Saveliev" ], "comment": "Published by Geometry and Topology at http://www.maths.warwick.ac.uk/gt/GTVol9/paper47.abs.html", "journal": "Geom. Topol. 9(2005) 2079-2127", "categories": [ "math.GT" ], "abstract": "This is the third in our series of papers relating gauge theoretic invariants of certain 4-manifolds with invariants of 3-manifolds derived from Rohlin's theorem. Such relations are well-known in dimension three, starting with Casson's integral lift of the Rohlin invariant of a homology sphere. We consider two invariants of a spin 4-manifold that has the integral homology of a 4-torus. The first is a degree zero Donaldson invariant, counting flat connections on a certain SO(3)-bundle. The second, which depends on the choice of a 1-dimensional cohomology class, is a combination of Rohlin invariants of a 3-manifold carrying the dual homology class. We prove that these invariants, suitably normalized, agree modulo 2, by showing that they coincide with the quadruple cup product of 1-dimensional cohomology classes.", "revisions": [ { "version": "v3", "updated": "2005-10-28T11:34:57.000Z" } ], "analyses": { "subjects": [ "57R57", "57R58" ], "keywords": [ "rohlins invariant", "gauge theory", "papers relating gauge theoretic invariants", "degree zero donaldson invariant", "rohlin invariant" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2004math......4162R" } } }