Cremona's table of elliptic curves

931 = 7² · 19

Field	Data	Notes
Atkin-Lehner	7- 19+	Signs for the Atkin-Lehner involutions
Class	931c	Isogeny class
Conductor	931	Conductor
∏ cp	1	Product of Tamagawa factors cp
deg	78	Modular degree for the optimal curve
Δ	-931 = -1 · 72 · 19	Discriminant
Eigenvalues	2 -2 -3 7-  4  6  7 19+	Hecke eigenvalues for primes up to 20
Equation	[0,1,1,-2,-3]	[a1,a2,a3,a4,a6]
j	-28672/19	j-invariant
L	1.8757939809807	L(r)(E,1)/r!
Ω	1.8757939809807	Real period
R	1	Regulator
r	0	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	1	Number of elements in the torsion subgroup
Twists	14896be1 59584bk1 8379i1 23275r1	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 931c1

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
2	-2	-3	-	4	6	7	+	3	0	0	-2	4	5	-4	6	-8	2	8	-2	-10	12	3	8	-4

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Quadratic twists for elliptic curve 931c1

-4	8	-3	5	-7	-11	-19
14896be1	59584bk1	8379i1	23275r1	931a1	112651n1	17689i1

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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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