Atkin-Lehner |
2+ 31- |
Signs for the Atkin-Lehner involutions |
Class |
1984f |
Isogeny class |
Conductor |
1984 |
Conductor |
∏ cp |
1 |
Product of Tamagawa factors cp |
deg |
192 |
Modular degree for the optimal curve |
Δ |
-31744 = -1 · 210 · 31 |
Discriminant |
Eigenvalues |
2+ 2 3 -1 6 -2 6 1 |
Hecke eigenvalues for primes up to 20 |
Equation |
[0,-1,0,-9,17] |
[a1,a2,a3,a4,a6] |
j |
-87808/31 |
j-invariant |
L |
3.4883891405628 |
L(r)(E,1)/r! |
Ω |
3.4883891405628 |
Real period |
R |
1 |
Regulator |
r |
0 |
Rank of the group of rational points |
S |
1 |
(Analytic) order of Ш |
t |
1 |
Number of elements in the torsion subgroup |
Twists |
1984h1 124a1 17856bh1 49600z1 |
Quadratic twists by: -4 8 -3 5 |