Properties

Label 62233.a.62233.1
Conductor 62233
Discriminant -62233
Sato-Tate group $\mathrm{USp}(4)$
\(\End(J_{\overline{\Q}}) \otimes \R\) \(\R\)
\(\End(J_{\overline{\Q}}) \otimes \Q\) \(\Q\)
\(\overline{\Q}\)-simple yes
\(\mathrm{GL}_2\)-type no

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Minimal equation

magma: R<x> := PolynomialRing(Rationals()); C := HyperellipticCurve(R![0, -5, 5, 1, -3], R![1, 1, 0, 1]);
 
sage: R.<x> = PolynomialRing(QQ); C = HyperellipticCurve(R([0, -5, 5, 1, -3]), R([1, 1, 0, 1]))
 

$y^2 + (x^3 + x + 1)y = -3x^4 + x^3 + 5x^2 - 5x$

Invariants

magma: Conductor(LSeries(C)); Factorization($1);
 
\( N \)  =  \( 62233 \)  =  \( 62233 \)
magma: Discriminant(C); Factorization(Integers()!$1);
 
\( \Delta \)  =  \(-62233\)  =  \( -1 \cdot 62233 \)

Igusa-Clebsch invariants

magma: IgusaClebschInvariants(C); [Factorization(Integers()!a): a in $1];
 
sage: C.igusa_clebsch_invariants(); [factor(a) for a in _]
 

Igusa invariants

magma: IgusaInvariants(C); [Factorization(Integers()!a): a in $1];
 

G2 invariants

magma: G2Invariants(C);
 

\( I_2 \)  =  \(3336\)  =  \( 2^{3} \cdot 3 \cdot 139 \)
\( I_4 \)  =  \(257892\)  =  \( 2^{2} \cdot 3 \cdot 21491 \)
\( I_6 \)  =  \(244275816\)  =  \( 2^{3} \cdot 3 \cdot 29 \cdot 350971 \)
\( I_{10} \)  =  \(-254906368\)  =  \( -1 \cdot 2^{12} \cdot 62233 \)
\( J_2 \)  =  \(417\)  =  \( 3 \cdot 139 \)
\( J_4 \)  =  \(4559\)  =  \( 47 \cdot 97 \)
\( J_6 \)  =  \(54933\)  =  \( 3 \cdot 18311 \)
\( J_8 \)  =  \(530645\)  =  \( 5 \cdot 106129 \)
\( J_{10} \)  =  \(-62233\)  =  \( -1 \cdot 62233 \)
\( g_1 \)  =  \(-12608989261857/62233\)
\( g_2 \)  =  \(-330580899567/62233\)
\( g_3 \)  =  \(-9552244437/62233\)
Alternative geometric invariants: Igusa-Clebsch, Igusa, G2

Automorphism group

magma: AutomorphismGroup(C); IdentifyGroup($1);
 
\(\mathrm{Aut}(X)\)\(\simeq\) \(C_2 \) (GAP id : [2,1])
magma: AutomorphismGroup(ChangeRing(C,AlgebraicClosure(Rationals()))); IdentifyGroup($1);
 
\(\mathrm{Aut}(X_{\overline{\Q}})\)\(\simeq\) \(C_2 \) (GAP id : [2,1])

Rational points

magma: f,h:=HyperellipticPolynomials(C); g:=4*f+h^2; HasPointsEverywhereLocally(g,2) and (#Roots(ChangeRing(g,RealField())) gt 0 or LeadingCoefficient(g) gt 0);
 

This curve is locally solvable everywhere.

magma: [C![-4,-27,3],C![-4,100,3],C![-3,14,1],C![-3,15,1],C![-1,-2,1],C![-1,3,1],C![0,-1,1],C![0,0,1],C![1,-2,1],C![1,-1,0],C![1,-1,1],C![1,0,0],C![2,-6,1],C![2,-5,1],C![5,-100,2],C![5,-53,2],C![11,-1052,6],C![11,-891,6],C![73,-475376,52],C![73,-251641,52]];
 

Known rational points: (-4 : -27 : 3), (-4 : 100 : 3), (-3 : 14 : 1), (-3 : 15 : 1), (-1 : -2 : 1), (-1 : 3 : 1), (0 : -1 : 1), (0 : 0 : 1), (1 : -2 : 1), (1 : -1 : 0), (1 : -1 : 1), (1 : 0 : 0), (2 : -6 : 1), (2 : -5 : 1), (5 : -100 : 2), (5 : -53 : 2), (11 : -1052 : 6), (11 : -891 : 6), (73 : -475376 : 52), (73 : -251641 : 52)

magma: #Roots(HyperellipticPolynomials(SimplifiedModel(C)));
 

Number of rational Weierstrass points: \(0\)

Invariants of the Jacobian:

Analytic rank*: \(3\)

magma: TwoSelmerGroup(Jacobian(C)); NumberOfGenerators($1);
 

2-Selmer rank: \(3\)

magma: HasSquareSha(Jacobian(C));
 

Order of Ш*: square

Regulator: 0.0267595997838

Real period: 21.721873351203386016356673804

Tamagawa numbers: 1 (p = 62233)

magma: TorsionSubgroup(Jacobian(SimplifiedModel(C))); AbelianInvariants($1);
 

Torsion: \(\mathrm{trivial}\)

2-torsion field: 6.4.3982912.1

Sato-Tate group

\(\mathrm{ST}\)\(\simeq\) $\mathrm{USp}(4)$
\(\mathrm{ST}^0\)\(\simeq\) \(\mathrm{USp}(4)\)

Decomposition

Simple over \(\overline{\Q}\)

Endomorphisms

Not of \(\GL_2\)-type over \(\Q\)

Endomorphism ring over \(\Q\):
\(\End (J_{})\)\(\simeq\)\(\Z\)
\(\End (J_{}) \otimes \Q \)\(\simeq\)\(\Q\)
\(\End (J_{}) \otimes \R\)\(\simeq\) \(\R\)

All \(\overline{\Q}\)-endomorphisms of the Jacobian are defined over \(\Q\).