Abstract
We determine which of the modular curves XΔ(N), that is, curves lying between X0(N) and X1(N), are bielliptic. Somewhat surprisingly, we find that one of these curves has exceptional automorphisms. Finally we find all XΔ(N) that have infinitely many quadratic points over Q.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
