Minimal equation
Minimal equation
Simplified equation
$y^2 + xy = 3x^6 + 74x^4 + 608x^2 + 1666$ | (homogenize, simplify) |
$y^2 + xz^2y = 3x^6 + 74x^4z^2 + 608x^2z^4 + 1666z^6$ | (dehomogenize, simplify) |
$y^2 = 12x^6 + 296x^4 + 2433x^2 + 6664$ | (homogenize, minimize) |
Invariants
Conductor: | \( N \) | \(=\) | \(45696\) | \(=\) | \( 2^{7} \cdot 3 \cdot 7 \cdot 17 \) | magma: Conductor(LSeries(C)); Factorization($1);
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Discriminant: | \( \Delta \) | \(=\) | \(-319872\) | \(=\) | \( - 2^{7} \cdot 3 \cdot 7^{2} \cdot 17 \) | magma: Discriminant(C); Factorization(Integers()!$1);
|
Igusa-Clebsch invariants
Igusa invariants
G2 invariants
\( I_2 \) | \(=\) | \(3839376\) | \(=\) | \( 2^{4} \cdot 3 \cdot 79987 \) |
\( I_4 \) | \(=\) | \(51981\) | \(=\) | \( 3 \cdot 17327 \) |
\( I_6 \) | \(=\) | \(66523796358\) | \(=\) | \( 2 \cdot 3 \cdot 457 \cdot 24261049 \) |
\( I_{10} \) | \(=\) | \(39984\) | \(=\) | \( 2^{4} \cdot 3 \cdot 7^{2} \cdot 17 \) |
\( J_2 \) | \(=\) | \(3839376\) | \(=\) | \( 2^{4} \cdot 3 \cdot 79987 \) |
\( J_4 \) | \(=\) | \(614200301570\) | \(=\) | \( 2 \cdot 5 \cdot 61420030157 \) |
\( J_6 \) | \(=\) | \(131008090608794112\) | \(=\) | \( 2^{9} \cdot 3 \cdot 7^{2} \cdot 17 \cdot 102391027199 \) |
\( J_8 \) | \(=\) | \(31436827110137639522303\) | \(=\) | \( 73 \cdot 701 \cdot 196169 \cdot 3131608407419 \) |
\( J_{10} \) | \(=\) | \(319872\) | \(=\) | \( 2^{7} \cdot 3 \cdot 7^{2} \cdot 17 \) |
\( g_1 \) | \(=\) | \(2172561126820181420821096587264/833\) | ||
\( g_2 \) | \(=\) | \(90523375176724692945595404480/833\) | ||
\( g_3 \) | \(=\) | \(6037305919866866779831296\) |
Automorphism group
\(\mathrm{Aut}(X)\) | \(\simeq\) | $C_2^2$ | magma: AutomorphismGroup(C); IdentifyGroup($1);
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\(\mathrm{Aut}(X_{\overline{\Q}})\) | \(\simeq\) | $C_2^2$ | magma: AutomorphismGroup(ChangeRing(C,AlgebraicClosure(Rationals()))); IdentifyGroup($1);
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Rational points
Number of rational Weierstrass points: \(0\)
This curve is locally solvable except over $\Q_{2}$.
Mordell-Weil group of the Jacobian
Group structure: \(\Z \oplus \Z/{2}\Z \oplus \Z/{2}\Z\)
Generator | $D_0$ | Height | Order | |||||
---|---|---|---|---|---|---|---|---|
\(D_0 - D_\infty\) | \(3x^2 + 25z^2\) | \(=\) | \(0,\) | \(6y\) | \(=\) | \(-3xz^2 + z^3\) | \(1.351603\) | \(\infty\) |
\(D_0 - D_\infty\) | \(2x^2 + 17z^2\) | \(=\) | \(0,\) | \(2y\) | \(=\) | \(-xz^2\) | \(0\) | \(2\) |
\(D_0 - D_\infty\) | \(x^2 + 8z^2\) | \(=\) | \(0,\) | \(2y\) | \(=\) | \(-xz^2\) | \(0\) | \(2\) |
Generator | $D_0$ | Height | Order | |||||
---|---|---|---|---|---|---|---|---|
\(D_0 - D_\infty\) | \(3x^2 + 25z^2\) | \(=\) | \(0,\) | \(6y\) | \(=\) | \(-3xz^2 + z^3\) | \(1.351603\) | \(\infty\) |
\(D_0 - D_\infty\) | \(2x^2 + 17z^2\) | \(=\) | \(0,\) | \(2y\) | \(=\) | \(-xz^2\) | \(0\) | \(2\) |
\(D_0 - D_\infty\) | \(x^2 + 8z^2\) | \(=\) | \(0,\) | \(2y\) | \(=\) | \(-xz^2\) | \(0\) | \(2\) |
Generator | $D_0$ | Height | Order | |||||
---|---|---|---|---|---|---|---|---|
\(D_0 - D_\infty\) | \(3x^2 + 25z^2\) | \(=\) | \(0,\) | \(6y\) | \(=\) | \(-5xz^2 + 2z^3\) | \(1.351603\) | \(\infty\) |
\(D_0 - D_\infty\) | \(2x^2 + 17z^2\) | \(=\) | \(0,\) | \(2y\) | \(=\) | \(-xz^2\) | \(0\) | \(2\) |
\(D_0 - D_\infty\) | \(x^2 + 8z^2\) | \(=\) | \(0,\) | \(2y\) | \(=\) | \(-xz^2\) | \(0\) | \(2\) |
2-torsion field: 8.0.443364212736.4
BSD invariants
Hasse-Weil conjecture: | verified |
Analytic rank: | \(1\) |
Mordell-Weil rank: | \(1\) |
2-Selmer rank: | \(5\) |
Regulator: | \( 1.351603 \) |
Real period: | \( 3.298910 \) |
Tamagawa product: | \( 2 \) |
Torsion order: | \( 4 \) |
Leading coefficient: | \( 2.229409 \) |
Analytic order of Ш: | \( 4 \) (rounded) |
Order of Ш: | square |
Local invariants
Prime | ord(\(N\)) | ord(\(\Delta\)) | Tamagawa | L-factor | Cluster picture |
---|---|---|---|---|---|
\(2\) | \(7\) | \(7\) | \(1\) | \(1 - T\) | |
\(3\) | \(1\) | \(1\) | \(1\) | \(( 1 + T )( 1 + 3 T^{2} )\) | |
\(7\) | \(1\) | \(2\) | \(2\) | \(( 1 - T )( 1 + 4 T + 7 T^{2} )\) | |
\(17\) | \(1\) | \(1\) | \(1\) | \(( 1 - T )( 1 + 6 T + 17 T^{2} )\) |
Galois representations
For primes $\ell \ge 5$ the Galois representation data has not been computed for this curve since it is not generic.
For primes $\ell \le 3$, the image of the mod-$\ell$ Galois representation is listed in the table below, whenever it is not all of $\GSp(4,\F_\ell)$.
Prime \(\ell\) | mod-\(\ell\) image | Is torsion prime? |
---|---|---|
\(2\) | 2.90.6 | yes |
\(3\) | 3.90.1 | no |
Sato-Tate group
\(\mathrm{ST}\) | \(\simeq\) | $\mathrm{SU}(2)\times\mathrm{SU}(2)$ |
\(\mathrm{ST}^0\) | \(\simeq\) | \(\mathrm{SU}(2)\times\mathrm{SU}(2)\) |
Decomposition of the Jacobian
Splits over \(\Q\)
Decomposes up to isogeny as the product of the non-isogenous elliptic curve isogeny classes:
Elliptic curve isogeny class 192.a
Elliptic curve isogeny class 238.d
Endomorphisms of the Jacobian
Of \(\GL_2\)-type over \(\Q\)
Endomorphism ring over \(\Q\):
\(\End (J_{})\) | \(\simeq\) | an order of index \(2\) in \(\Z \times \Z\) |
\(\End (J_{}) \otimes \Q \) | \(\simeq\) | \(\Q\) \(\times\) \(\Q\) |
\(\End (J_{}) \otimes \R\) | \(\simeq\) | \(\R \times \R\) |
All \(\overline{\Q}\)-endomorphisms of the Jacobian are defined over \(\Q\).