Department of Mathematics, Simon Fraser University, Burnaby, British Columbia, Canada, V5A 1S6 ; Department of Mathematics and Statistics, Concordia University, Montreal, Quebec, Canada, H3G 1M8
Abstract:
We calculate explicitly the -invariants of the elliptic curves corresponding to rational points on the modular curve by giving an expression defined over of the -function in terms of the function field generators and of the elliptic curve . As a result we exhibit infinitely many elliptic curves over with nonsplit mod representations.