Minimal Weierstrass equation
Minimal Weierstrass equation
Simplified equation
\(y^2+xy+y=x^3-12253553x+7333793948\) | (homogenize, simplify) |
\(y^2z+xyz+yz^2=x^3-12253553xz^2+7333793948z^3\) | (dehomogenize, simplify) |
\(y^2=x^3-15880604067x+342213132261726\) | (homogenize, minimize) |
Mordell-Weil group structure
\(\Z/{6}\Z\)
Torsion generators
\( \left(-2226, 154675\right) \)
Integral points
\( \left(-2226, 154675\right) \), \( \left(-2226, -152450\right) \), \( \left(4524, 208675\right) \), \( \left(4524, -213200\right) \)
Invariants
Conductor: | \( 51870 \) | = | $2 \cdot 3 \cdot 5 \cdot 7 \cdot 13 \cdot 19$ | comment: Conductor
sage: E.conductor().factor()
gp: ellglobalred(E)[1]
magma: Conductor(E);
oscar: conductor(E)
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Discriminant: | $94509995635986328125000 $ | = | $2^{3} \cdot 3^{9} \cdot 5^{18} \cdot 7^{2} \cdot 13^{2} \cdot 19 $ | comment: Discriminant
sage: E.discriminant().factor()
gp: E.disc
magma: Discriminant(E);
oscar: discriminant(E)
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j-invariant: | \( \frac{203474393135384091200330761}{94509995635986328125000} \) | = | $2^{-3} \cdot 3^{-9} \cdot 5^{-18} \cdot 7^{-2} \cdot 13^{-2} \cdot 19^{-1} \cdot 53^{3} \cdot 233^{3} \cdot 47629^{3}$ | comment: j-invariant
sage: E.j_invariant().factor()
gp: E.j
magma: jInvariant(E);
oscar: j_invariant(E)
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Endomorphism ring: | $\Z$ | |||
Geometric endomorphism ring: | \(\Z\) | (no potential complex multiplication) | sage: E.has_cm()
magma: HasComplexMultiplication(E);
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Sato-Tate group: | $\mathrm{SU}(2)$ | |||
Faltings height: | $3.1031292376648846378992640707\dots$ | gp: ellheight(E)
magma: FaltingsHeight(E);
oscar: faltings_height(E)
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Stable Faltings height: | $3.1031292376648846378992640707\dots$ | magma: StableFaltingsHeight(E);
oscar: stable_faltings_height(E)
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$abc$ quality: | $1.0008440643779843\dots$ | |||
Szpiro ratio: | $5.579846677671665\dots$ |
BSD invariants
Analytic rank: | $0$ | sage: E.analytic_rank()
gp: ellanalyticrank(E)
magma: AnalyticRank(E);
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Regulator: | $1$ | comment: Regulator
sage: E.regulator()
G = E.gen \\ if available
magma: Regulator(E);
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Real period: | $0.095602928887593429796539485674\dots$ | comment: Real Period
sage: E.period_lattice().omega()
gp: if(E.disc>0,2,1)*E.omega[1]
magma: (Discriminant(E) gt 0 select 2 else 1) * RealPeriod(E);
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Tamagawa product: | $ 648 $ = $ 1\cdot3^{2}\cdot( 2 \cdot 3^{2} )\cdot2\cdot2\cdot1 $ | comment: Tamagawa numbers
sage: E.tamagawa_numbers()
gp: gr=ellglobalred(E); [[gr[4][i,1],gr[5][i][4]] | i<-[1..#gr[4][,1]]]
magma: TamagawaNumbers(E);
oscar: tamagawa_numbers(E)
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Torsion order: | $6$ | comment: Torsion order
sage: E.torsion_order()
gp: elltors(E)[1]
magma: Order(TorsionSubgroup(E));
oscar: prod(torsion_structure(E)[1])
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Analytic order of Ш: | $1$ ( exact) | comment: Order of Sha
sage: E.sha().an_numerical()
magma: MordellWeilShaInformation(E);
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Special value: | $ L(E,1) $ ≈ $ 1.7208527199766817363377107421 $ | comment: Special L-value
r = E.rank();
gp: [r,L1r] = ellanalyticrank(E); L1r/r!
magma: Lr1 where r,Lr1 := AnalyticRank(E: Precision:=12);
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BSD formula
$\displaystyle 1.720852720 \approx L(E,1) = \frac{\# Ш(E/\Q)\cdot \Omega_E \cdot \mathrm{Reg}(E/\Q) \cdot \prod_p c_p}{\#E(\Q)_{\rm tor}^2} \approx \frac{1 \cdot 0.095603 \cdot 1.000000 \cdot 648}{6^2} \approx 1.720852720$
Modular invariants
Modular form 51870.2.a.bo
For more coefficients, see the Downloads section to the right.
Modular degree: | 5971968 | comment: Modular degree
sage: E.modular_degree()
gp: ellmoddegree(E)
magma: ModularDegree(E);
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$ \Gamma_0(N) $-optimal: | no | |
Manin constant: | 1 | comment: Manin constant
magma: ManinConstant(E);
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Local data
This elliptic curve is semistable. There are 6 primes of bad reduction:
prime | Tamagawa number | Kodaira symbol | Reduction type | Root number | ord($N$) | ord($\Delta$) | ord$(j)_{-}$ |
---|---|---|---|---|---|---|---|
$2$ | $1$ | $I_{3}$ | Non-split multiplicative | 1 | 1 | 3 | 3 |
$3$ | $9$ | $I_{9}$ | Split multiplicative | -1 | 1 | 9 | 9 |
$5$ | $18$ | $I_{18}$ | Split multiplicative | -1 | 1 | 18 | 18 |
$7$ | $2$ | $I_{2}$ | Split multiplicative | -1 | 1 | 2 | 2 |
$13$ | $2$ | $I_{2}$ | Split multiplicative | -1 | 1 | 2 | 2 |
$19$ | $1$ | $I_{1}$ | Split multiplicative | -1 | 1 | 1 | 1 |
Galois representations
The $\ell$-adic Galois representation has maximal image for all primes $\ell$ except those listed in the table below.
prime $\ell$ | mod-$\ell$ image | $\ell$-adic image |
---|---|---|
$2$ | 2B | 2.3.0.1 |
$3$ | 3B.1.1 | 9.24.0.1 |
The image $H:=\rho_E(\Gal(\overline{\Q}/\Q))$ of the adelic Galois representation has level \( 622440 = 2^{3} \cdot 3^{2} \cdot 5 \cdot 7 \cdot 13 \cdot 19 \), index $864$, genus $21$, and generators
$\left(\begin{array}{rr} 1 & 36 \\ 0 & 1 \end{array}\right),\left(\begin{array}{rr} 1 & 0 \\ 36 & 1 \end{array}\right),\left(\begin{array}{rr} 466831 & 36 \\ 311230 & 361 \end{array}\right),\left(\begin{array}{rr} 239431 & 36 \\ 195866 & 5047 \end{array}\right),\left(\begin{array}{rr} 28 & 27 \\ 311529 & 298 \end{array}\right),\left(\begin{array}{rr} 32764 & 9 \\ 491479 & 178 \end{array}\right),\left(\begin{array}{rr} 622405 & 36 \\ 622404 & 37 \end{array}\right),\left(\begin{array}{rr} 19 & 36 \\ 3240 & 6139 \end{array}\right),\left(\begin{array}{rr} 248977 & 36 \\ 10 & 361 \end{array}\right),\left(\begin{array}{rr} 88951 & 36 \\ 182186 & 5047 \end{array}\right),\left(\begin{array}{rr} 1 & 18 \\ 14 & 253 \end{array}\right),\left(\begin{array}{rr} 484148 & 27 \\ 207789 & 298 \end{array}\right)$.
The torsion field $K:=\Q(E[622440])$ is a degree-$21582312745048473600$ Galois extension of $\Q$ with $\Gal(K/\Q)$ isomorphic to the projection of $H$ to $\GL_2(\Z/622440\Z)$.
Isogenies
This curve has non-trivial cyclic isogenies of degree $d$ for $d=$
2, 3, 6, 9 and 18.
Its isogeny class 51870.bo
consists of 6 curves linked by isogenies of
degrees dividing 18.
Twists
This elliptic curve is its own minimal quadratic twist.
Growth of torsion in number fields
The number fields $K$ of degree less than 24 such that $E(K)_{\rm tors}$ is strictly larger than $E(\Q)_{\rm tors}$ $\cong \Z/{6}\Z$ are as follows:
$[K:\Q]$ | $K$ | $E(K)_{\rm tors}$ | Base change curve |
---|---|---|---|
$2$ | \(\Q(\sqrt{114}) \) | \(\Z/2\Z \oplus \Z/6\Z\) | Not in database |
$3$ | 3.3.2989441.2 | \(\Z/18\Z\) | Not in database |
$4$ | 4.0.377613600.8 | \(\Z/12\Z\) | Not in database |
$6$ | 6.0.241292452296987.2 | \(\Z/3\Z \oplus \Z/6\Z\) | Not in database |
$6$ | 6.0.80714907.8 | \(\Z/18\Z\) | Not in database |
$6$ | 6.6.2347292975945089536.1 | \(\Z/2\Z \oplus \Z/18\Z\) | Not in database |
$8$ | deg 8 | \(\Z/2\Z \oplus \Z/12\Z\) | Not in database |
$8$ | deg 8 | \(\Z/2\Z \oplus \Z/12\Z\) | Not in database |
$12$ | deg 12 | \(\Z/6\Z \oplus \Z/6\Z\) | Not in database |
$12$ | deg 12 | \(\Z/2\Z \oplus \Z/18\Z\) | Not in database |
$12$ | deg 12 | \(\Z/36\Z\) | Not in database |
$16$ | deg 16 | \(\Z/24\Z\) | Not in database |
$18$ | 18.0.14048540627591034469073544207134874163576803.1 | \(\Z/3\Z \oplus \Z/18\Z\) | Not in database |
We only show fields where the torsion growth is primitive. For fields not in the database, click on the degree shown to reveal the defining polynomial.
Iwasawa invariants
$p$ | 2 | 3 | 5 | 7 | 13 | 19 |
---|---|---|---|---|---|---|
Reduction type | nonsplit | split | split | split | split | split |
$\lambda$-invariant(s) | 4 | 3 | 1 | 1 | 1 | 1 |
$\mu$-invariant(s) | 0 | 0 | 0 | 0 | 0 | 0 |
All Iwasawa $\lambda$ and $\mu$-invariants for primes $p\ge 5$ of good reduction are zero.
$p$-adic regulators
All $p$-adic regulators are identically $1$ since the rank is $0$.