Cremona's table of elliptic curves

987 = 3 · 7 · 47

Class	r	Atkin-Lehner	Eigenvalues
987a (2 curves)	0	3+ 7+ 47-	1 3+  4 7+  2  0  6 -4
Curve Equation t 987a1 [1,1,0,7,0] 2 987a2 [1,1,0,-28,-35] 2
987b (4 curves)	0	3+ 7+ 47-	-1 3+  2 7+  0  2  2 -4
Curve Equation t 987b1 [1,1,1,-62,-214] 2 987b2 [1,1,1,-67,-184] 4 987b3 [1,1,1,-382,2588] 4 987b4 [1,1,1,168,-936] 2
987c (1 curve)	0	3+ 7+ 47-	2 3+  0 7+  3  6  3  5
Curve Equation t 987c1 [0,-1,1,-208,1227] 1
987d (1 curve)	0	3- 7+ 47+	2 3-  4 7+  1 -2 -3  1
Curve Equation t 987d1 [0,1,1,-2066,100013] 1
987e (2 curves)	1	3- 7+ 47-	-1 3- -2 7+ -2  4  6 -2
Curve Equation t Generators 987e1 [1,0,0,1596,9783] 2 [-3:72:1] 987e2 [1,0,0,-6909,79524] 2 [0:282:1]

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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