Cremona's table of elliptic curves

Conductor 87381

87381 = 3² · 7 · 19 · 73

Isogeny classes of curves of conductor 87381 [newforms of level 87381]

Class

r

Atkin-Lehner

Eigenvalues

87381a (1 curve)

0

³- ⁷+ ¹⁹+ ⁷³+

0 ³- 2 ⁷+ 0 7 4 ¹⁹+

87381b (2 curves)

1

³- ⁷+ ¹⁹+ ⁷³-

-1 ³- 2 ⁷+ 4 2 6 ¹⁹+

87381c (2 curves)

1

³- ⁷+ ¹⁹- ⁷³+

1 ³- 0 ⁷+ -6 2 0 ¹⁹-

87381d (1 curve)

2

³- ⁷+ ¹⁹- ⁷³-

0 ³- -1 ⁷+ 2 -2 -2 ¹⁹-

87381e (2 curves)

2

³- ⁷+ ¹⁹- ⁷³-

-1 ³- -4 ⁷+ 2 -4 -8 ¹⁹-

87381f (2 curves)

0

³- ⁷- ¹⁹+ ⁷³-

1 ³- 0 ⁷- 6 -4 4 ¹⁹+

87381g (2 curves)

1

³- ⁷- ¹⁹- ⁷³-

0 ³- 0 ⁷- 6 -1 6 ¹⁹-

87381h (3 curves)

1

³- ⁷- ¹⁹- ⁷³-

0 ³- 3 ⁷- 0 -4 6 ¹⁹-

87381i (2 curves)

1

³- ⁷- ¹⁹- ⁷³-

-1 ³- 0 ⁷- -2 4 4 ¹⁹-

87381j (2 curves)

1

³- ⁷- ¹⁹- ⁷³-

-1 ³- 0 ⁷- -2 4 4 ¹⁹-

87381k (1 curve)

1

³- ⁷- ¹⁹- ⁷³-

2 ³- 1 ⁷- 2 0 -2 ¹⁹-

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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