{ "id": "math/0108220", "version": "v1", "published": "2001-08-31T07:48:20.000Z", "updated": "2001-08-31T07:48:20.000Z", "title": "Non-complex symplectic 4-manifolds with $b_{2}^{+}=1$", "authors": [ "Jongil Park" ], "comment": "AMS-LaTeX file, 7 pages", "categories": [ "math.GT", "math.SG" ], "abstract": "In this short article we give a criterion whether a given minimal symplectic 4-manifold with $b_{2}^{+}=1$ having a torsion-free canonical class is rational or ruled. As a corollary, we confirm that most of homotopy elliptic surfaces $E(1}_{K}$, K is a fibered knot in $S^3$, constructed by R. Fintushel and R. Stern are minimal symplectic 4-manifolds with $b_{2}^{+}=1$ which do not admit a complex structure.", "revisions": [ { "version": "v1", "updated": "2001-08-31T07:48:20.000Z" } ], "analyses": { "subjects": [ "57R17", "57R57" ], "keywords": [ "non-complex symplectic", "minimal symplectic", "homotopy elliptic surfaces", "short article", "complex structure" ], "note": { "typesetting": "LaTeX", "pages": 7, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2001math......8220P" } } }