Cremona's table of elliptic curves

Curve 1197b1

1197 = 32 · 7 · 19



Data for elliptic curve 1197b1

Field Data Notes
Atkin-Lehner 3+ 7- 19- Signs for the Atkin-Lehner involutions
Class 1197b Isogeny class
Conductor 1197 Conductor
∏ cp 4 Product of Tamagawa factors cp
deg 384 Modular degree for the optimal curve
Δ 18324873 = 39 · 72 · 19 Discriminant
Eigenvalues -1 3+  0 7- -2 -6  8 19- Hecke eigenvalues for primes up to 20
Equation [1,-1,1,-515,4618] [a1,a2,a3,a4,a6]
Generators [-14:101:1] Generators of the group modulo torsion
j 766060875/931 j-invariant
L 1.7397355817288 L(r)(E,1)/r!
Ω 2.1728516811671 Real period
R 0.80066927568397 Regulator
r 1 Rank of the group of rational points
S 1 (Analytic) order of Ш
t 2 Number of elements in the torsion subgroup
Twists 19152be1 76608i1 1197a1 29925b1 Quadratic twists by: -4 8 -3 5


Data from Elliptic Curve Data by J. E. Cremona.
Design inspired by The Modular Forms Explorer by William Stein.

Part of Computational Number Theory
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