Cremona's table of elliptic curves

990 = 2 · 3² · 5 · 11

Field	Data	Notes
Atkin-Lehner	2+ 3+ 5+ 11+	Signs for the Atkin-Lehner involutions
Class	990a	Isogeny class
Conductor	990	Conductor
∏ cp	8	Product of Tamagawa factors cp
Δ	-4083750 = -1 · 2 · 33 · 54 · 112	Discriminant
Eigenvalues	2+ 3+ 5+  0 11+  0 -2  2	Hecke eigenvalues for primes up to 20
Equation	[1,-1,0,15,91]	[a1,a2,a3,a4,a6]
Generators	[3:11:1]	Generators of the group modulo torsion
j	13312053/151250	j-invariant
L	1.7927380911418	L(r)(E,1)/r!
Ω	1.8209179898566	Real period
R	0.49226217246691	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	7920v2 31680f2 990i2 4950w2	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 990a2

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
+	+	+	0	+	0	-2	2	-6	-2	0	-6	-2	-2	2	-2	-8	4	-4	2	-10	4	-12	0	-18

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Quadratic twists for elliptic curve 990a2

-4	8	-3	5	-7	-11
7920v2	31680f2	990i2	4950w2	48510h2	10890bd2

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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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