Galois actions on non-abelian finite groups and applications

In this thesis, we consider the Galois actions on some finite characteristic quotients of the geometric fundamental groups of once-punctured elliptic curves. In particular, those of which can be naturally regarded as non-abelian lifts of usual mod ℓ Galois representations attached to ellipti...

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Bibliographic Details
Main Author: Lim, Junghwan
Other Authors: Kim, Minhyong
Published: University of Oxford 2017
Online Access:https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.748875
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Summary:In this thesis, we consider the Galois actions on some finite characteristic quotients of the geometric fundamental groups of once-punctured elliptic curves. In particular, those of which can be naturally regarded as non-abelian lifts of usual mod ℓ Galois representations attached to elliptic curves. We also find its applications to some questions in the realm of Diophantine geometry.