Cremona's table of elliptic curves

28083 = 3 · 11 · 23 · 37

Class	r	Atkin-Lehner	Eigenvalues
28083a (2 curves)	1	3+ 11- 23+ 37-	1 3+  2 -2 11- -4  4  0
Curve Equation t Generators 28083a1 [1,1,0,-49,-152] 2 [1092:6394:27] 28083a2 [1,1,0,6,-405] 2 [162:1989:1]
28083b (1 curve)	1	3+ 11- 23- 37+	-2 3+ -2  1 11- -6  1 -6
Curve Equation t Generators 28083b1 [0,-1,1,36,-46] 1 [2:5:1]
28083c (1 curve)	0	3- 11+ 23+ 37+	-1 3-  0  5 11+ -4  2 -6
Curve Equation t 28083c1 [1,0,0,-119813,15952674] 1
28083d (2 curves)	1	3- 11+ 23+ 37-	0 3-  0 -1 11+  2  3 -4
Curve Equation t Generators 28083d1 [0,1,1,-23,-904] 3 [3290:66791:8] 28083d2 [0,1,1,-7793,-267415] 1 [486230855238:-9675764188097:1170905464]
28083e (1 curve)	1	3- 11+ 23- 37+	0 3-  0  3 11+  6  1  0
Curve Equation t Generators 28083e1 [0,1,1,-14253,1221293] 1 [51:-794:1]
28083f (2 curves)	1	3- 11- 23+ 37+	-1 3- -2 -4 11- -6  8 -2
Curve Equation t Generators 28083f1 [1,0,0,-2856029,1857531984] 2 [979:-308:1] 28083f2 [1,0,0,-2866964,1842588213] 2 [-833:60856:1]

Data from Elliptic Curve Data by J. E. Cremona.
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