Torsion points on modular curves and Galois theory

2003/05/19 by Kenneth A. Ribet, Ribet, Kenneth A., Minhyong Kim +1 · 1 citation
Mathematics · #11G30 #Algebraic Geometry (math.AG) #FOS: Mathematics #Number Theory (math.NT) #math.AG #math.NT #msc:11G30

paper · pdf · doi:10.48550/arxiv.math/0305281

Based upon lectures by K.A. Ribet at the University of Arizona in May 1999

arxiv created 2003/05/19 · arxiv updated 2009/11/30

Abstract

We outline the proof of a theorem of M. Baker and A. Tamagawa that gives a complete description of the torsion points on a modular curve embedded in its Jacobian using the notion of an `almost rational torsion point.'

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• Torsion points of small order on cyclic covers of \mathbb P¹. II

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