Cremona's table of elliptic curves
Conductor 2821
2821 = 7 · 13 · 31
Isogeny classes of curves of conductor 2821
[newforms of level 2821]
Class
r
Atkin-Lehner
Eigenvalues
2821a
(1 curve)
1
7
+
13
+
31
+
2
0
2
7
+
-3
13
+
-2
-8
Curve
Equation
t
Generators
2821a1
[0,0,1,1,-7]
1
[18:17:8]
2821b
(2 curves)
0
7
-
13
+
31
+
1
0
0
7
-
0
13
+
2
4
Curve
Equation
t
2821b1
[1,-1,0,-217,-1176]
2
2821b2
[1,-1,0,-152,-1943]
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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