Cremona's table of elliptic curves

1922 = 2 · 31²

Field	Data	Notes
Atkin-Lehner	2+ 31-	Signs for the Atkin-Lehner involutions
Class	1922b	Isogeny class
Conductor	1922	Conductor
∏ cp	2	Product of Tamagawa factors cp
deg	120	Modular degree for the optimal curve
Δ	3844 = 22 · 312	Discriminant
Eigenvalues	2+ -1 -3 -1 -3 -5 -3 -7	Hecke eigenvalues for primes up to 20
Equation	[1,1,0,-4,-4]	[a1,a2,a3,a4,a6]
Generators	[-2:2:1] [-1:1:1]	Generators of the group modulo torsion
j	10633/4	j-invariant
L	2.03705265371	L(r)(E,1)/r!
Ω	3.3788043060121	Real period
R	0.30144578809837	Regulator
r	2	Rank of the group of rational points
S	0.99999999999903	(Analytic) order of Ш
t	1	Number of elements in the torsion subgroup
Twists	15376v1 61504p1 17298u1 48050u1	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 1922b1

a2	a3	a5	a7	a11	a13	a17	a19	a23	a29	a31	a37	a41	a43	a47	a53	a59	a61	a67	a71	a73	a79	a83	a89	a97
+	-1	-3	-1	-3	-5	-3	-7	0	-6	-	7	3	-5	-12	-9	-3	10	-13	-3	13	1	9	-6	2

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Quadratic twists for elliptic curve 1922b1

-4	8	-3	5	-7	-31
15376v1	61504p1	17298u1	48050u1	94178f1	1922a1

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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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