Cremona's table of elliptic curves

1085 = 5 · 7 · 31

Field	Data	Notes
Atkin-Lehner	5+ 7- 31-	Signs for the Atkin-Lehner involutions
Class	1085c	Isogeny class
Conductor	1085	Conductor
∏ cp	4	Product of Tamagawa factors cp
deg	80	Modular degree for the optimal curve
Δ	-37975 = -1 · 52 · 72 · 31	Discriminant
Eigenvalues	-1 -2 5+ 7- -2 -2  2  4	Hecke eigenvalues for primes up to 20
Equation	[1,0,0,-11,16]	[a1,a2,a3,a4,a6]
Generators	[1:2:1]	Generators of the group modulo torsion
j	-148035889/37975	j-invariant
L	1.1297807113576	L(r)(E,1)/r!
Ω	3.4704797601296	Real period
R	0.32554021041616	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	17360r1 69440bz1 9765n1 5425b1	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 1085c1

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	-2	+	-	-2	-2	2	4	0	10	-	-4	2	-4	0	-8	-4	-8	-12	-12	-10	10	-6	16	2

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Quadratic twists for elliptic curve 1085c1

-4	8	-3	5	-7	-31
17360r1	69440bz1	9765n1	5425b1	7595g1	33635f1

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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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