Minimal Weierstrass equation
Minimal Weierstrass equation
Simplified equation
\(y^2+xy=x^3-x^2+2578508x-7660225584\) | (homogenize, simplify) |
\(y^2z+xyz=x^3-x^2z+2578508xz^2-7660225584z^3\) | (dehomogenize, simplify) |
\(y^2=x^3+41256125x-490213181250\) | (homogenize, minimize) |
Mordell-Weil group structure
\(\Z \oplus \Z/{2}\Z\)
Infinite order Mordell-Weil generator and height
$P$ | = | \(\left(17928, 2399484\right)\) |
$\hat{h}(P)$ | ≈ | $3.1068143847190900244126739984$ |
Torsion generators
\( \left(1544, -772\right) \)
Integral points
\( \left(1544, -772\right) \), \( \left(17928, 2399484\right) \), \( \left(17928, -2417412\right) \)
Invariants
Conductor: | \( 126350 \) | = | $2 \cdot 5^{2} \cdot 7 \cdot 19^{2}$ | comment: Conductor
sage: E.conductor().factor()
gp: ellglobalred(E)[1]
magma: Conductor(E);
oscar: conductor(E)
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Discriminant: | $-26442284761088000000000 $ | = | $-1 \cdot 2^{24} \cdot 5^{9} \cdot 7^{6} \cdot 19^{3} $ | comment: Discriminant
sage: E.discriminant().factor()
gp: E.disc
magma: Discriminant(E);
oscar: discriminant(E)
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j-invariant: | \( \frac{141526649406897}{1973822685184} \) | = | $2^{-24} \cdot 3^{3} \cdot 7^{-6} \cdot 29^{3} \cdot 599^{3}$ | 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);
| |
Sato-Tate group: | $\mathrm{SU}(2)$ | |||
Faltings height: | $2.9831585006115736328034701822\dots$ | gp: ellheight(E)
magma: FaltingsHeight(E);
oscar: faltings_height(E)
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Stable Faltings height: | $1.0399703214943882368506438243\dots$ | magma: StableFaltingsHeight(E);
oscar: stable_faltings_height(E)
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$abc$ quality: | $1.2004912171952706\dots$ | |||
Szpiro ratio: | $5.026180398942408\dots$ |
BSD invariants
Analytic rank: | $1$ | sage: E.analytic_rank()
gp: ellanalyticrank(E)
magma: AnalyticRank(E);
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Regulator: | $3.1068143847190900244126739984\dots$ | comment: Regulator
sage: E.regulator()
G = E.gen \\ if available
magma: Regulator(E);
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Real period: | $0.058208121551012233665628544870\dots$ | 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);
|
Tamagawa product: | $ 48 $ = $ 2\cdot2\cdot( 2 \cdot 3 )\cdot2 $ | 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: | $2$ | 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: | $1$ ( rounded) | comment: Order of Sha
sage: E.sha().an_numerical()
magma: MordellWeilShaInformation(E);
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Special value: | $ L'(E,1) $ ≈ $ 2.1701019521059449223137251063 $ | 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
$\displaystyle 2.170101952 \approx L'(E,1) = \frac{\# Ш(E/\Q)\cdot \Omega_E \cdot \mathrm{Reg}(E/\Q) \cdot \prod_p c_p}{\#E(\Q)_{\rm tor}^2} \approx \frac{1 \cdot 0.058208 \cdot 3.106814 \cdot 48}{2^2} \approx 2.170101952$
Modular invariants
Modular form 126350.2.a.ba
For more coefficients, see the Downloads section to the right.
Modular degree: | 11404800 | comment: Modular degree
sage: E.modular_degree()
gp: ellmoddegree(E)
magma: ModularDegree(E);
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$ \Gamma_0(N) $-optimal: | yes | |
Manin constant: | 1 | comment: Manin constant
magma: ManinConstant(E);
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Local data
This elliptic curve is not semistable. There are 4 primes of bad reduction:
prime | Tamagawa number | Kodaira symbol | Reduction type | Root number | ord($N$) | ord($\Delta$) | ord$(j)_{-}$ |
---|---|---|---|---|---|---|---|
$2$ | $2$ | $I_{24}$ | Non-split multiplicative | 1 | 1 | 24 | 24 |
$5$ | $2$ | $III^{*}$ | Additive | -1 | 2 | 9 | 0 |
$7$ | $6$ | $I_{6}$ | Split multiplicative | -1 | 1 | 6 | 6 |
$19$ | $2$ | $III$ | Additive | 1 | 2 | 3 | 0 |
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 | 8.12.0.31 |
$3$ | 3Nn | 3.3.0.1 |
The image $H:=\rho_E(\Gal(\overline{\Q}/\Q))$ of the adelic Galois representation has level \( 31920 = 2^{4} \cdot 3 \cdot 5 \cdot 7 \cdot 19 \), index $576$, genus $37$, and generators
$\left(\begin{array}{rr} 27397 & 18 \\ 22062 & 31561 \end{array}\right),\left(\begin{array}{rr} 7 & 48 \\ 31872 & 31591 \end{array}\right),\left(\begin{array}{rr} 13 & 24 \\ 31368 & 30901 \end{array}\right),\left(\begin{array}{rr} 6368 & 31899 \\ 13341 & 752 \end{array}\right),\left(\begin{array}{rr} 19951 & 48 \\ 24 & 1153 \end{array}\right),\left(\begin{array}{rr} 23941 & 48 \\ 24 & 1153 \end{array}\right),\left(\begin{array}{rr} 1 & 48 \\ 0 & 1 \end{array}\right),\left(\begin{array}{rr} 1 & 0 \\ 48 & 1 \end{array}\right),\left(\begin{array}{rr} 33 & 16 \\ 30800 & 31377 \end{array}\right),\left(\begin{array}{rr} 1688 & 37 \\ 13507 & 8080 \end{array}\right),\left(\begin{array}{rr} 31873 & 48 \\ 31872 & 49 \end{array}\right),\left(\begin{array}{rr} 10657 & 16 \\ 21536 & 241 \end{array}\right),\left(\begin{array}{rr} 31 & 36 \\ 28764 & 28255 \end{array}\right)$.
The torsion field $K:=\Q(E[31920])$ is a degree-$244000279756800$ Galois extension of $\Q$ with $\Gal(K/\Q)$ isomorphic to the projection of $H$ to $\GL_2(\Z/31920\Z)$.
Isogenies
This curve has non-trivial cyclic isogenies of degree $d$ for $d=$
2.
Its isogeny class 126350.ba
consists of 2 curves linked by isogenies of
degree 2.
Twists
The minimal quadratic twist of this elliptic curve is 126350.cy2, its twist by $5$.
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 $E(\Q)_{\rm tors}$ $\cong \Z/{2}\Z$ are as follows:
$[K:\Q]$ | $K$ | $E(K)_{\rm tors}$ | Base change curve |
---|---|---|---|
$2$ | \(\Q(\sqrt{-95}) \) | \(\Z/2\Z \oplus \Z/2\Z\) | Not in database |
$4$ | 4.2.13718000.2 | \(\Z/4\Z\) | Not in database |
$8$ | deg 8 | \(\Z/2\Z \oplus \Z/4\Z\) | Not in database |
$8$ | 8.0.188183524000000.14 | \(\Z/2\Z \oplus \Z/4\Z\) | Not in database |
$8$ | 8.2.1607645964796875.1 | \(\Z/6\Z\) | Not in database |
$16$ | deg 16 | \(\Z/4\Z \oplus \Z/4\Z\) | Not in database |
$16$ | deg 16 | \(\Z/8\Z\) | Not in database |
$16$ | deg 16 | \(\Z/3\Z \oplus \Z/6\Z\) | Not in database |
$16$ | deg 16 | \(\Z/2\Z \oplus \Z/6\Z\) | 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 | 11 | 13 | 17 | 19 | 23 | 29 | 31 | 37 | 41 | 43 | 47 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Reduction type | nonsplit | ss | add | split | ord | ord | ord | add | ord | ss | ss | ord | ord | ss | ord |
$\lambda$-invariant(s) | 4 | 1,1 | - | 2 | 1 | 1 | 1 | - | 1 | 1,1 | 1,1 | 1 | 1 | 1,1 | 1 |
$\mu$-invariant(s) | 0 | 0,0 | - | 0 | 0 | 0 | 0 | - | 0 | 0,0 | 0,0 | 0 | 0 | 0,0 | 0 |
An entry - indicates that the invariants are not computed because the reduction is additive.
$p$-adic regulators
Note: $p$-adic regulator data only exists for primes $p\ge 5$ of good ordinary reduction.