Cremona's table of elliptic curves
Conductor 91
91 = 7 · 13
Isogeny classes of curves of conductor 91
[newforms of level 91]
Class
r
Atkin-Lehner
Eigenvalues
91a
(1 curve)
1
7
+
13
+
-2
0
-3
7
+
-6
13
+
4
5
Curve
Equation
t
Generators
91a1
[0,0,1,1,0]
1
[0:0:1]
91b
(3 curves)
1
7
-
13
-
0
-2
-3
7
-
0
13
-
-6
-7
Curve
Equation
t
Generators
91b1
[0,1,1,-7,5]
3
[-1:3:1]
91b2
[0,1,1,13,42]
3
[-2:3:1]
91b3
[0,1,1,-117,-1245]
1
[15:24:1]
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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