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Jul 25, 2011 at 2:22 comment added Makhalan Duff I've read Oort's paper at some point. The point is that it is clear how the Galois action is defined, but what is not clear is its interpretation given in the link I put.
Jul 25, 2011 at 2:05 comment added JSE I don't have the books in front of me, but one of them has an expository article by Oort which is very useful. And whichever article defines the Grothendieck-Teichmuller group will unavoidably give a very explicit description of (the little we really know about) the action of the Galois group on the etale fundamental group of P^1 - 0,1,infty. Maybe you should edit the post to make it more clear what your question is -- the three books above certainly serve as a good introduction to the story of Galois groups acting on fundamental groups.
Jul 25, 2011 at 1:56 comment added Makhalan Duff I didn't downvote (or upvote), but I do have all three books out from the library, and I don't see anywhere where my question is discussed.
Jul 25, 2011 at 0:34 comment added JSE Why was this downvoted? These books are indeed the natural place to read about what Schneps was talking about.
Jul 24, 2011 at 23:36 history answered Spice the Bird CC BY-SA 3.0