Cremona's table of elliptic curves
Conductor 1581
1581 = 3 · 17 · 31
Isogeny classes of curves of conductor 1581
[newforms of level 1581]
Class
r
Atkin-Lehner
Eigenvalues
1581a
(1 curve)
1
3
+
17
+
31
+
0
3
+
1
-2
1
1
17
+
3
Curve
Equation
t
Generators
1581a1
[0,-1,1,-125,590]
1
[10:15:1]
1581b
(4 curves)
0
3
+
17
+
31
-
-1
3
+
2
0
4
6
17
+
-4
Curve
Equation
t
1581b1
[1,1,1,8,8]
2
1581b2
[1,1,1,-37,26]
4
1581b3
[1,1,1,-292,-2014]
2
1581b4
[1,1,1,-502,4118]
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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