Weighted Completion of Galois Groups and Galois Actions on the Fundamental Group of P^1 - {0,1,infinity}

dc.creatorHain, Richard
dc.creatorMatsumoto, Makoto
dc.date2000-06-21
dc.date2001-08-11
dc.date.accessioned2026-07-07T04:36:00Z
dc.date.available2026-07-07T04:36:00Z
dc.descriptionThis is a revision of the paper that was previously entitled "Weighted Completion of Galois Groups and Some Conjectures of Deligne". Fix a prime number $ł$. We prove a conjecture stated by Ihara, which he attributes to Deligne, about the action of the absolute Galois group on the pro-$ł$ completion of the fundamental group of the thrice punctured projective line. Similar techniques are also used to prove part of a conjecture of Goncharov, also about the action of the absolute Galois group on the fundamental group of the thrice punctured projective line. The main technical tool is the weighted completion of a profinite group with respect to a reductive representation (and other appropriate data). This theory is developed in this paper.
dc.description41 pages, amslatex
dc.identifierhttps://arxiv.org/abs/math/0006158
dc.identifierhttp://arxiv.org/abs/math/0006158
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/59447
dc.subjectAlgebraic Geometry
dc.subjectK-Theory and Homology
dc.subjectNumber Theory
dc.titleWeighted Completion of Galois Groups and Galois Actions on the Fundamental Group of P^1 - {0,1,infinity}
dc.typetext

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