$p$-adic regulator calculations
Why can't some $p$-adic regulators be calculated? The first case where this happens is the curve 3314b3. I received the following error message after using this code:
x = EllipticCurve("3314b3"); x r = x.rank(); r p = 7 x.is_good(p) and x.is_ordinary(p) reg = x.padic_regulator(p,prec=7); reg
RuntimeError: Unable to compute the rank, hence generators, with certainty (lower bound=0, generators found=). This could be because Sha(E/Q) is nontrivial. Try increasing descent_second_limit then trying this command again.