{ "id": "1401.2697", "version": "v2", "published": "2014-01-13T02:15:23.000Z", "updated": "2014-10-05T23:18:36.000Z", "title": "Restrictions on the prime to $p$ fundamental group of a smooth projective variety", "authors": [ "Donu Arapura" ], "comment": "Final revision; to appear in Compositio Math", "categories": [ "math.AG", "math.GT", "math.NT" ], "abstract": "The goal of this paper is to obtain restrictions on the prime to p quotient of the \\'etale fundamental group of a smooth projective variety in characteristic $p\\ge 0$. The results are analogues some theorems in the study of K\\\"ahler groups. Our first main result is that such groups are indecomposable under coproduct. The second gives a classification of the pro-$\\ell$ parts of one relator groups in this class.", "revisions": [ { "version": "v1", "updated": "2014-01-13T02:15:23.000Z", "comment": "12 pages, latex", "journal": null, "doi": null }, { "version": "v2", "updated": "2014-10-05T23:18:36.000Z" } ], "analyses": { "subjects": [ "14F35" ], "keywords": [ "smooth projective variety", "restrictions", "etale fundamental group", "first main result", "relator groups" ], "note": { "typesetting": "LaTeX", "pages": 12, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014arXiv1401.2697A" } } }