Cremona's table of elliptic curves

1025 = 5² · 41

Field	Data	Notes
Atkin-Lehner	5+ 41-	Signs for the Atkin-Lehner involutions
Class	1025b	Isogeny class
Conductor	1025	Conductor
∏ cp	4	Product of Tamagawa factors cp
deg	288	Modular degree for the optimal curve
Δ	16015625 = 58 · 41	Discriminant
Eigenvalues	1  0 5+  4  0  2  6  0	Hecke eigenvalues for primes up to 20
Equation	[1,-1,0,-542,4991]	[a1,a2,a3,a4,a6]
j	1128111921/1025	j-invariant
L	2.1905570950363	L(r)(E,1)/r!
Ω	2.1905570950363	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	16400s1 65600r1 9225r1 205a1	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 1025b1

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

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Quadratic twists for elliptic curve 1025b1

-4	8	-3	5	-7	-11	41
16400s1	65600r1	9225r1	205a1	50225d1	124025e1	42025a1

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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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