Cremona's table of elliptic curves
Conductor 56
56 = 2
3
· 7
Isogeny classes of curves of conductor 56
[newforms of level 56]
Class
r
Atkin-Lehner
Eigenvalues
56b
(2 curves)
0
2
+
7
-
2
+
2
-4
7
-
0
0
-2
-2
Curve
Equation
t
56b1
[0,-1,0,0,-4]
2
56b2
[0,-1,0,-40,-84]
2
56a
(4 curves)
0
2
-
7
+
2
-
0
2
7
+
-4
2
-6
8
Curve
Equation
t
56a1
[0,0,0,1,2]
4
56a2
[0,0,0,-19,30]
4
56a3
[0,0,0,-59,-138]
2
56a4
[0,0,0,-299,1990]
2
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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