Cremona's table of elliptic curves

1938 = 2 · 3 · 17 · 19

Field	Data	Notes
Atkin-Lehner	2+ 3+ 17+ 19+	Signs for the Atkin-Lehner involutions
Class	1938a	Isogeny class
Conductor	1938	Conductor
∏ cp	2	Product of Tamagawa factors cp
deg	160	Modular degree for the optimal curve
Δ	3876 = 22 · 3 · 17 · 19	Discriminant
Eigenvalues	2+ 3+  2 -2 -4  4 17+ 19+	Hecke eigenvalues for primes up to 20
Equation	[1,1,0,-19,25]	[a1,a2,a3,a4,a6]
Generators	[0:5:1]	Generators of the group modulo torsion
j	822656953/3876	j-invariant
L	2.0453048278559	L(r)(E,1)/r!
Ω	4.4338261577101	Real period
R	0.92259134891846	Regulator
r	1	Rank of the group of rational points
S	1	(Analytic) order of Ш
t	2	Number of elements in the torsion subgroup
Twists	15504y1 62016bg1 5814q1 48450bq1	Quadratic twists by: -4 8 -3 5

Hecke Eigenvalues for elliptic curve 1938a1

a2	a3	a5	a7	a11	a13	a17	a19	a23	a29	a31	a37	a41	a43	a47	a53	a59	a61	a67	a71	a73	a79	a83	a89	a97
+	+	2	-2	-4	4	+	+	4	-4	0	-2	-2	-4	2	-2	-12	12	8	-10	-6	4	-8	6	-2

---

Quadratic twists for elliptic curve 1938a1

-4	8	-3	5	-7	17	-19
15504y1	62016bg1	5814q1	48450bq1	94962y1	32946g1	36822z1

---

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

Part of Computational Number Theory
Back to Tables and computations