{ "id": "math/0503294", "version": "v3", "published": "2005-03-15T13:18:48.000Z", "updated": "2006-10-19T17:28:33.000Z", "title": "Fibrations of low genus, I", "authors": [ "Fabrizio Catanese", "Roberto Pignatelli" ], "comment": "50 pages, to appear on Annales Scientifiques de l'Ecole Normale Superieure", "categories": [ "math.AG" ], "abstract": "In the present paper we consider fibrations $f: S \\ra B$ of an algebraic surface onto a curve $B$, with general fibre a curve of genus $g$. Our main results are: 1) A structure theorem for such fibrations in the case $g=2$ 2) A structure theorem for such fibrations in the case $g=3$ and general fibre nonhyperelliptic 3) A theorem giving a complete description of the moduli space of minimal surfaces of general type with $ K^2_S = 3, p_g = q=1$, showing in particular that it has four unirational connected components 4) some other applications of the two structure theorems.", "revisions": [ { "version": "v3", "updated": "2006-10-19T17:28:33.000Z" } ], "analyses": { "subjects": [ "14D06", "14J29", "11G30" ], "keywords": [ "low genus", "fibrations", "structure theorem", "general fibre nonhyperelliptic", "unirational connected components" ], "note": { "typesetting": "TeX", "pages": 50, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2005math......3294C" } } }