{ "id": "1410.4142", "version": "v1", "published": "2014-10-15T17:17:32.000Z", "updated": "2014-10-15T17:17:32.000Z", "title": "Enumeration of singular hypersurfaces on arbitrary complex manifolds", "authors": [ "Ritwik Mukherjee" ], "comment": "6 pages; comments are welcome", "categories": [ "math.AG" ], "abstract": "In this paper we obtain an explicit formula for the number of hypersurfaces in a compact complex manifold X (passing through the right number of points), that has a simple node, a cusp or a tacnode. The hypersurfaces belong to a linear system, which is obtained by considering a holomorphic line bundle L over X. Our main tool is a classical fact from differential topology: the number of zeros of a generic smooth section of a vector bundle V over M, counted with a sign, is the Euler class of V evaluated on the fundamental class of M.", "revisions": [ { "version": "v1", "updated": "2014-10-15T17:17:32.000Z" } ], "analyses": { "subjects": [ "14N10", "14H20", "55R55", "57R20", "57R22", "57R45" ], "keywords": [ "arbitrary complex manifolds", "singular hypersurfaces", "enumeration", "compact complex manifold", "generic smooth section" ], "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014arXiv1410.4142M" } } }