{ "id": "math/0703596", "version": "v2", "published": "2007-03-20T15:07:31.000Z", "updated": "2008-10-13T18:48:05.000Z", "title": "Ordinary holomorphic webs of codimension one", "authors": [ "Vincent Cavalier", "Daniel Lehmann" ], "comment": "13 pages", "categories": [ "math.DS" ], "abstract": "The main change with respect to the previous version is a change of terminology : we call \"ordinary\" the webs previously called \"regular\". A holomorphic $d$-web of codimension one in dimension $n$ is \"ordinary\", if it satisfies to some condition of genericity. In dimension at least 3, any such web has a rank bounded from above by a number $\\pi'(n,d)$ strictly smaller than the bound $\\pi(n,d)$ of castelnuovo. This bound $\\pi'(n,d)$ is optimal. Moreover, for some $d$'s, the abelian relations are sections with vanishing covariant derivative of some bundle with a connection, the curvature of which generalizes the Blaschke curvature. In dimension 2, we recover results of H\\'enaut and Pantazi", "revisions": [ { "version": "v2", "updated": "2008-10-13T18:48:05.000Z" } ], "analyses": { "subjects": [ "57R25", "58A20" ], "keywords": [ "ordinary holomorphic webs", "codimension", "main change", "abelian relations", "blaschke curvature" ], "note": { "typesetting": "TeX", "pages": 13, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2007math......3596C" } } }