A Survey on Q-torsion group of elliptic curve and Mazur''s Theorem

碩士 === 國立臺灣大學 === 數學研究所 === 101 === Let K be a number eld and E=K be an elliptic curve, that is, a smooth projective curve of genus 1 with an distinguished K-rational point chosen. By the Mordell-Weil Theorem, the group of points E(K) is a nitely generated abelian group. Its structure is of the fo...

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Bibliographic Details
Main Authors: Yen-Sheng Wang, 王彥勝
Other Authors: Ki-Seng Tan
Format: Others
Language:en_US
Published: 2013
Online Access:http://ndltd.ncl.edu.tw/handle/32999567369275210930
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Summary:碩士 === 國立臺灣大學 === 數學研究所 === 101 === Let K be a number eld and E=K be an elliptic curve, that is, a smooth projective curve of genus 1 with an distinguished K-rational point chosen. By the Mordell-Weil Theorem, the group of points E(K) is a nitely generated abelian group. Its structure is of the form: E(K) = Etors(K) Zr According to this theorem, we know that Etors(K) is a nite group. In 1977, Mazur [Maz] proved a beautiful theorem for K = Q. It determines all the possible torsion structures of Etors(Q). In this thesis, we try to survey on the proof of this tremendous theorem as well as that of Mordell-Weil Theorem.