Cremona's table of elliptic curves

931 = 7² · 19

Class	r	Atkin-Lehner	Eigenvalues
931a (1 curve)	0	7+ 19-	2  2  3 7+  4 -6 -7 19-
Curve Equation t 931a1 [0,-1,1,-114,727] 1
931b (3 curves)	0	7- 19+	0  2 -3 7-  3  4  3 19+
Curve Equation t 931b1 [0,-1,1,33,-8] 1 931b2 [0,-1,1,-457,4157] 1 931b3 [0,-1,1,-37697,2829742] 1
931c (1 curve)	0	7- 19+	2 -2 -3 7-  4  6  7 19+
Curve Equation t 931c1 [0,1,1,-2,-3] 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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