Cremona's table of elliptic curves

4940 = 2² · 5 · 13 · 19

Class	r	Atkin-Lehner	Eigenvalues
4940a (1 curve)	0	2- 5+ 13+ 19+	2-  2 5+  2 -6 13+  7 19+
Curve Equation t 4940a1 [0,-1,0,-666,-8359] 1
4940b (1 curve)	1	2- 5+ 13+ 19-	2-  0 5+ -2  6 13+  1 19-
Curve Equation t Generators 4940b1 [0,0,0,-953,319673] 1 [49:625:1]
4940c (1 curve)	1	2- 5+ 13+ 19-	2- -3 5+ -3 -6 13+  2 19-
Curve Equation t Generators 4940c1 [0,0,0,872,-7127] 1 [46:-361:1]
4940d (2 curves)	0	2- 5+ 13- 19-	2-  1 5+ -1 -6 13- -6 19-
Curve Equation t 4940d1 [0,1,0,19,-76] 3 4940d2 [0,1,0,-1021,-12920] 1
4940e (2 curves)	0	2- 5+ 13- 19-	2- -2 5+  2  6 13-  3 19-
Curve Equation t 4940e1 [0,1,0,-626126,190487065] 3 4940e2 [0,1,0,-612066,199464109] 1
4940f (1 curve)	1	2- 5- 13+ 19+	2-  1 5- -1 -2 13+  6 19+
Curve Equation t Generators 4940f1 [0,1,0,-66405,-46920472] 1 [676:14750:1]
4940g (1 curve)	1	2- 5- 13+ 19+	2- -2 5-  2 -2 13+  3 19+
Curve Equation t Generators 4940g1 [0,1,0,10,13] 1 [1:5:1]
4940h (1 curve)	1	2- 5- 13- 19-	2- -1 5-  3  2 13- -2 19-
Curve Equation t Generators 4940h1 [0,-1,0,-5,10] 1 [2:2:1]

Data from Elliptic Curve Data by J. E. Cremona.
Design inspired by The Modular Forms Explorer by William Stein.

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