Cremona's table of elliptic curves

1995 = 3 · 5 · 7 · 19

Field	Data	Notes
Atkin-Lehner	3+ 5+ 7- 19+	Signs for the Atkin-Lehner involutions
Class	1995a	Isogeny class
Conductor	1995	Conductor
∏ cp	8	Product of Tamagawa factors cp
Δ	303003411204375 = 312 · 54 · 7 · 194	Discriminant
Eigenvalues	-1 3+ 5+ 7-  0  2  6 19+	Hecke eigenvalues for primes up to 20
Equation	[1,1,1,-28816,-1698262]	[a1,a2,a3,a4,a6]
j	2646218738827415809/303003411204375	j-invariant
L	0.73832597021971	L(r)(E,1)/r!
Ω	0.36916298510985	Real period
R	1	Regulator
r	0	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	31920bo4 127680de4 5985q3 9975i3	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 1995a3

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	+	+	-	0	2	6	+	-4	-2	-8	6	2	4	-8	-10	4	14	0	8	-6	12	-4	2	14

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Quadratic twists for elliptic curve 1995a3

-4	8	-3	5	-7	-19
31920bo4	127680de4	5985q3	9975i3	13965y3	37905o4

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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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