Cremona's table of elliptic curves

219 = 3 · 73

Class	r	Atkin-Lehner	Eigenvalues
219a (1 curve)	1	3+ 73+	-2 3+ -1  2 -4 -2 -3 -1
Curve Equation t Generators 219a1 [0,-1,1,-6,8] 1 [2:-1:1]
219c (2 curves)	1	3+ 73+	1 3+ -4  2 -4 -2  0 -4
Curve Equation t Generators 219c1 [1,1,0,-82,-305] 2 [-6:7:1] 219c2 [1,1,0,-1297,-18530] 2 [414:1691:8]
219b (2 curves)	1	3- 73-	0 3- -3 -4  0 -4  3 -1
Curve Equation t Generators 219b1 [0,1,1,3,2] 3 [2:4:1] 219b2 [0,1,1,-27,-85] 1 [23:109:1]

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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