Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4586298 | Journal of Algebra | 2011 | 6 Pages |
Abstract
Using the positive solution of the general Abhyankarʼs conjecture, we prove that the fundamental group π1(C) of the smooth connected affine curve C is “almost free”. That is, for each positive integer e and for almost all σ=(σ1,…,σe)∈π1e(C) in the sense of the Haar measure, the closed subgroup of π1(C) generated by σ1,…,σe is profinite free on e generators. This implies a theorem of Harbater–Stevenson, proved by other means, that every finite embedding problem for π1(C) is solvable, if we restrict the problem to a suitable open subgroups.
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