Properties

Label 6630.v7
Conductor 6630
Discriminant 42904970360310988800
j-invariant \( \frac{1018563973439611524445729}{42904970360310988800} \)
CM no
Rank 1
Torsion Structure \(\Z/{12}\Z\)

Related objects

Downloads

Learn more about

Show commands for: Magma / SageMath / Pari/GP

Minimal Weierstrass equation

magma: E := EllipticCurve([1, 0, 0, -2096146, 1124611076]); // or
 
magma: E := EllipticCurve("6630w1");
 
sage: E = EllipticCurve([1, 0, 0, -2096146, 1124611076]) # or
 
sage: E = EllipticCurve("6630w1")
 
gp: E = ellinit([1, 0, 0, -2096146, 1124611076]) \\ or
 
gp: E = ellinit("6630w1")
 

\( y^2 + x y = x^{3} - 2096146 x + 1124611076 \)

Mordell-Weil group structure

\(\Z\times \Z/{12}\Z\)

Infinite order Mordell-Weil generator and height

magma: Generators(E);
 
sage: E.gens()
 

\(P\) =  \( \left(-1636, 14078\right) \)
\(\hat{h}(P)\) ≈  1.26700471986

Torsion generators

magma: TorsionSubgroup(E);
 
sage: E.torsion_subgroup().gens()
 
gp: elltors(E)
 

\( \left(1016, 6122\right) \)

Integral points

magma: IntegralPoints(E);
 
sage: E.integral_points()
 

\( \left(-1636, 14078\right) \), \( \left(-1084, 46622\right) \), \( \left(-700, 47774\right) \), \( \left(-310, 41924\right) \), \( \left(-4, 33662\right) \), \( \left(548, 11582\right) \), \( \left(626, 7292\right) \), \( \left(676, 3742\right) \), \( \left(964, -482\right) \), \( \left(1016, 6122\right) \), \( \left(1220, 18974\right) \), \( \left(1796, 55262\right) \), \( \left(2408, 99002\right) \), \( \left(3668, 205022\right) \), \( \left(14276, 1690142\right) \), \( \left(61076, 15059342\right) \)

Note: only one of each pair $\pm P$ is listed.

Invariants

magma: Conductor(E);
 
sage: E.conductor().factor()
 
gp: ellglobalred(E)[1]
 
Conductor: \( 6630 \)  =  \(2 \cdot 3 \cdot 5 \cdot 13 \cdot 17\)
magma: Discriminant(E);
 
sage: E.discriminant().factor()
 
gp: E.disc
 
Discriminant: \(42904970360310988800 \)  =  \(2^{24} \cdot 3^{6} \cdot 5^{2} \cdot 13^{4} \cdot 17^{3} \)
magma: jInvariant(E);
 
sage: E.j_invariant().factor()
 
gp: E.j
 
j-invariant: \( \frac{1018563973439611524445729}{42904970360310988800} \)  =  \(2^{-24} \cdot 3^{-6} \cdot 5^{-2} \cdot 11^{6} \cdot 13^{-4} \cdot 17^{-3} \cdot 831529^{3}\)
Endomorphism ring: \(\Z\)   (no Complex Multiplication)
Sato-Tate Group: $\mathrm{SU}(2)$

BSD invariants

magma: Rank(E);
 
sage: E.rank()
 
Rank: \(1\)
magma: Regulator(E);
 
sage: E.regulator()
 
Regulator: \(1.26700471986\)
magma: RealPeriod(E);
 
sage: E.period_lattice().omega()
 
gp: E.omega[1]
 
Real period: \(0.201068006781\)
magma: TamagawaNumbers(E);
 
sage: E.tamagawa_numbers()
 
gp: gr=ellglobalred(E); [[gr[4][i,1],gr[5][i][4]] | i<-[1..#gr[4][,1]]]
 
Tamagawa product: \( 3456 \)  = \( ( 2^{3} \cdot 3 )\cdot( 2 \cdot 3 )\cdot2\cdot2^{2}\cdot3 \)
magma: Order(TorsionSubgroup(E));
 
sage: E.torsion_order()
 
gp: elltors(E)[1]
 
Torsion order: \(12\)
magma: MordellWeilShaInformation(E);
 
sage: E.sha().an_numerical()
 
Analytic order of Ш: \(1\) (exact)

Modular invariants

Modular form 6630.2.a.v

magma: ModularForm(E);
 
sage: E.q_eigenform(20)
 
gp: xy = elltaniyama(E);
 
gp: x*deriv(xy[1])/(2*xy[2]+E.a1*xy[1]+E.a3)
 

\( q + q^{2} + q^{3} + q^{4} - q^{5} + q^{6} - 4q^{7} + q^{8} + q^{9} - q^{10} + q^{12} + q^{13} - 4q^{14} - q^{15} + q^{16} + q^{17} + q^{18} - 4q^{19} + O(q^{20}) \)

For more coefficients, see the Downloads section to the right.

magma: ModularDegree(E);
 
sage: E.modular_degree()
 
Modular degree: 276480
\( \Gamma_0(N) \)-optimal: yes
Manin constant: 1

Special L-value

magma: Lr1 where r,Lr1 := AnalyticRank(E: Precision:=12);
 
sage: r = E.rank();
 
sage: E.lseries().dokchitser().derivative(1,r)/r.factorial()
 
gp: ar = ellanalyticrank(E);
 
gp: ar[2]/factorial(ar[1])
 

\( L'(E,1) \) ≈ \( 6.11409872652 \)

Local data

magma: [LocalInformation(E,p) : p in BadPrimes(E)];
 
sage: E.local_data()
 
gp: ellglobalred(E)[5]
 
prime Tamagawa number Kodaira symbol Reduction type Root number ord(\(N\)) ord(\(\Delta\)) ord\((j)_{-}\)
\(2\) \(24\) \( I_{24} \) Split multiplicative -1 1 24 24
\(3\) \(6\) \( I_{6} \) Split multiplicative -1 1 6 6
\(5\) \(2\) \( I_{2} \) Non-split multiplicative 1 1 2 2
\(13\) \(4\) \( I_{4} \) Split multiplicative -1 1 4 4
\(17\) \(3\) \( I_{3} \) Split multiplicative -1 1 3 3

Galois representations

The image of the 2-adic representation attached to this elliptic curve is the subgroup of $\GL(2,\Z_2)$ with Rouse label X13h.

This subgroup is the pull-back of the subgroup of $\GL(2,\Z_2/2^2\Z_2)$ generated by $\left(\begin{array}{rr} 3 & 0 \\ 0 & 1 \end{array}\right),\left(\begin{array}{rr} 1 & 1 \\ 0 & 3 \end{array}\right)$ and has index 12.

magma: [GaloisRepresentation(E,p): p in PrimesUpTo(20)];
 
sage: rho = E.galois_representation();
 
sage: [rho.image_type(p) for p in rho.non_surjective()]
 

The mod \( p \) Galois representation has maximal image \(\GL(2,\F_p)\) for all primes \( p \) except those listed.

prime Image of Galois representation
\(2\) B
\(3\) B.1.1

$p$-adic data

$p$-adic regulators

sage: [E.padic_regulator(p) for p in primes(3,20) if E.conductor().valuation(p)<2]
 

Note: \(p\)-adic regulator data only exists for primes \(p\ge5\) of good ordinary reduction.

Iwasawa invariants

$p$ 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47
Reduction type split split nonsplit ordinary ss split split ordinary ss ordinary ordinary ordinary ordinary ordinary ss
$\lambda$-invariant(s) 3 4 1 1 1,1 2 2 1 1,1 1 1 1 1 3 1,1
$\mu$-invariant(s) 0 0 0 0 0,0 0 0 0 0,0 0 0 0 0 0 0,0

Isogenies

This curve has non-trivial cyclic isogenies of degree \(d\) for \(d=\) 2, 3, 4, 6 and 12.
Its isogeny class 6630.v consists of 8 curves linked by isogenies of degrees dividing 12.

Growth of torsion in number fields

The number fields $K$ of degree up to 7 such that $E(K)_{\rm tors}$ is strictly larger than $E(\Q)_{\rm tors}$ $\cong \Z/{12}\Z$ are as follows:

$[K:\Q]$ $K$ $E(K)_{\rm tors}$ Base-change curve
2 \(\Q(\sqrt{17}) \) \(\Z/2\Z \times \Z/12\Z\) Not in database
4 4.4.646425.1 \(\Z/24\Z\) Not in database
6 6.0.481966875.1 \(\Z/3\Z \times \Z/12\Z\) Not in database

We only show fields where the torsion growth is primitive. For each field $K$ we either show its label, or a defining polynomial when $K$ is not in the database.