Skip to main content
3 events
when toggle format what by license comment
Oct 10, 2016 at 13:26 comment added David E Speyer On the other hand, this is the only answer. If $(p+1-N)/\sqrt{p} = (q+1-M)/\sqrt{q}$ with $p+1-N$ and $q+1-M$ nonzero, then $\sqrt{p/q}$ is rational, which it isn't. So the only solutions are when $p+1-N=q+1-M=0$, the supersingular case.
Oct 10, 2016 at 12:04 vote accept masa
Oct 10, 2016 at 11:52 history answered SashaP CC BY-SA 3.0