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Canadian Number Theory Association X Meeting (CNTA X)
July 13-18, 2008
University of Waterloo
Waterloo, Ontario, Canada

Organizers
Kevin Hare (Waterloo, Wentang Kuo (Waterloo), Yu-Ru Liu (Waterloo), David McKinnon (Waterloo), Michael Rubinstein (Waterloo), Cam Stewart (Waterloo)

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Structure of the cuspidal rational torsion subgroups of J_1(p^n)
by
Yifan Yang
National Chiao Tung University
Coauthors: Jeng-Daw Yu, Queen's University, Canada

Let J_1(N) be the Jacobian of the modular curve X_1(N). Its (Q-)rational torsion subgroup contains a subgroup coming from the cusps of X_1(N). In this talk, we will present a structure theorem for the p-primary subgroup of the cuspidal rational subgroup of J_1(p^n) for a regular prime p.

Date received: May 13, 2008

Copyright © 2008 by the author(s). The author(s) of this document and the organizers of the conference have granted their consent to include this abstract in Atlas Conferences Inc. Document # cawl-45.