{ "id": "0903.4472", "version": "v3", "published": "2009-03-25T21:15:33.000Z", "updated": "2011-05-20T12:21:46.000Z", "title": "The fundamental group of affine curves in positive characteristic", "authors": [ "Manish Kumar" ], "comment": "22 pages. Some errors corrected and gaps fixed. Some more consequences added. Comments are very much welcome", "categories": [ "math.AG" ], "abstract": "It is shown that the commutator subgroup of the fundamental group of a smooth affine curve over an uncountable algebraically closed field $k$ of positive characteristic is a profinite free group of rank equal to the cardinality of $k$.", "revisions": [ { "version": "v3", "updated": "2011-05-20T12:21:46.000Z" } ], "analyses": { "subjects": [ "14H30" ], "keywords": [ "fundamental group", "positive characteristic", "smooth affine curve", "profinite free group", "commutator subgroup" ], "note": { "typesetting": "TeX", "pages": 22, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009arXiv0903.4472K" } } }