Cremona's table of elliptic curves

18928 = 2⁴ · 7 · 13²

Field	Data	Notes
Atkin-Lehner	2- 7- 13+	Signs for the Atkin-Lehner involutions
Class	18928y	Isogeny class
Conductor	18928	Conductor
∏ cp	12	Product of Tamagawa factors cp
Δ	-1899462656 = -1 · 215 · 73 · 132	Discriminant
Eigenvalues	2- -1 -3 7-  0 13+  6 -4	Hecke eigenvalues for primes up to 20
Equation	[0,-1,0,-992,12544]	[a1,a2,a3,a4,a6]
Generators	[32:-112:1]	Generators of the group modulo torsion
j	-156116857/2744	j-invariant
L	2.9382951608708	L(r)(E,1)/r!
Ω	1.482474394706	Real period
R	0.16516840422132	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	1	Number of elements in the torsion subgroup
Twists	2366i2 75712cp2 18928m2	Quadratic twists by: -4 8 13

Hecke Eigenvalues for elliptic curve 18928y2

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	-	0	+	6	-4	-3	6	-10	-8	0	-8	6	12	3	11	2	-3	-2	4	0	6	-2

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Quadratic twists for elliptic curve 18928y2

-4	8	13
2366i2	75712cp2	18928m2

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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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