{ "id": "1704.04419", "version": "v1", "published": "2017-04-14T13:33:51.000Z", "updated": "2017-04-14T13:33:51.000Z", "title": "On intersection forms of definite 4-manifolds bounded by a rational homology 3-sphere", "authors": [ "Dong Heon Choe", "Kyungbae Park" ], "comment": "16 pages, 4 figures", "categories": [ "math.GT", "math.NT" ], "abstract": "We show that, if a rational homology 3-sphere $Y$ bounds a positive definite smooth 4-manifold, then there are finitely many negative definite lattices, up to the stable-equivalence, which can be realized as the intersection form of a smooth 4-manifold bounded by $Y$. To this end, we make use of constraints on definite forms bounded by $Y$ induced from Donaldson's diagonalization theorem, and Ozsv\\'ath and Szab\\'o's Heegaard Floer correction term. We also present some families of Seifert fibered 3-manifolds that bound both positive and negative definite smooth 4-manifolds.", "revisions": [ { "version": "v1", "updated": "2017-04-14T13:33:51.000Z" } ], "analyses": { "keywords": [ "rational homology", "intersection form", "szabos heegaard floer correction term", "donaldsons diagonalization theorem", "negative definite smooth" ], "note": { "typesetting": "TeX", "pages": 16, "language": "en", "license": "arXiv", "status": "editable" } } }