Minimal Weierstrass equation
Minimal Weierstrass equation
Simplified equation
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\(y^2+xy=x^3-12756x-555264\)
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(homogenize, simplify) |
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\(y^2z+xyz=x^3-12756xz^2-555264z^3\)
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(dehomogenize, simplify) |
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\(y^2=x^3-16531803x-25856801802\)
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(homogenize, minimize) |
Mordell-Weil group structure
\(\Z \oplus \Z/{2}\Z\)
Mordell-Weil generators
| $P$ | $\hat{h}(P)$ | Order |
|---|---|---|
| \( \left(-66, 48\right) \) | $2.0432554227845851210109210590$ | $\infty$ |
| \( \left(-64, 32\right) \) | $0$ | $2$ |
| $P$ | $\hat{h}(P)$ | Order |
|---|---|---|
| \([-66:48:1]\) | $2.0432554227845851210109210590$ | $\infty$ |
| \([-64:32:1]\) | $0$ | $2$ |
| $P$ | $\hat{h}(P)$ | Order |
|---|---|---|
| \( \left(-2373, 3240\right) \) | $2.0432554227845851210109210590$ | $\infty$ |
| \( \left(-2301, 0\right) \) | $0$ | $2$ |
Integral points
\( \left(-66, 48\right) \), \( \left(-66, 18\right) \), \( \left(-64, 32\right) \), \( \left(186, 1782\right) \), \( \left(186, -1968\right) \)
\([-66:48:1]\), \([-66:18:1]\), \([-64:32:1]\), \([186:1782:1]\), \([186:-1968:1]\)
\((-2373,\pm 3240)\), \( \left(-2301, 0\right) \), \((6699,\pm 405000)\)
Invariants
| Conductor: | $N$ | = | \( 1230 \) | = | $2 \cdot 3 \cdot 5 \cdot 41$ |
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| Minimal Discriminant: | $\Delta$ | = | $155072250000$ | = | $2^{4} \cdot 3^{2} \cdot 5^{6} \cdot 41^{3} $ |
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| j-invariant: | $j$ | = | \( \frac{229545811016693569}{155072250000} \) | = | $2^{-4} \cdot 3^{-2} \cdot 5^{-6} \cdot 17^{3} \cdot 41^{-3} \cdot 36017^{3}$ |
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| Endomorphism ring: | $\mathrm{End}(E)$ | = | $\Z$ | |||
| Geometric endomorphism ring: | $\mathrm{End}(E_{\overline{\Q}})$ | = | \(\Z\) (no potential complex multiplication) |
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| Sato-Tate group: | $\mathrm{ST}(E)$ | = | $\mathrm{SU}(2)$ | |||
| Faltings height: | $h_{\mathrm{Faltings}}$ | ≈ | $1.0853857186453301806022987772$ |
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| Stable Faltings height: | $h_{\mathrm{stable}}$ | ≈ | $1.0853857186453301806022987772$ |
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| $abc$ quality: | $Q$ | ≈ | $0.988826521190976$ | |||
| Szpiro ratio: | $\sigma_{m}$ | ≈ | $5.6185768642078395$ | |||
| Intrinsic torsion order: | $\#E(\mathbb Q)_\text{tors}^\text{is}$ | = | $1$ | |||
BSD invariants
| Analytic rank: | $r_{\mathrm{an}}$ | = | $ 1$ |
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| Mordell-Weil rank: | $r$ | = | $ 1$ |
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| Regulator: | $\mathrm{Reg}(E/\Q)$ | ≈ | $2.0432554227845851210109210590$ |
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| Real period: | $\Omega$ | ≈ | $0.44925028448419674691554444221$ |
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| Tamagawa product: | $\prod_{p}c_p$ | = | $ 16 $ = $ 2^{2}\cdot2\cdot2\cdot1 $ |
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| Torsion order: | $\#E(\Q)_{\mathrm{tor}}$ | = | $2$ |
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| Special value: | $ L'(E,1)$ | ≈ | $3.6717323198394102610646886949 $ |
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| Analytic order of Ш: | Ш${}_{\mathrm{an}}$ | ≈ | $1$ (rounded) |
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BSD formula
$$\begin{aligned} 3.671732320 \approx L'(E,1) & = \frac{\# ะจ(E/\Q)\cdot \Omega_E \cdot \mathrm{Reg}(E/\Q) \cdot \prod_p c_p}{\#E(\Q)_{\rm tor}^2} \\ & \approx \frac{1 \cdot 0.449250 \cdot 2.043255 \cdot 16}{2^2} \\ & \approx 3.671732320\end{aligned}$$
Modular invariants
For more coefficients, see the Downloads section to the right.
| Modular degree: | 3456 |
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| $ \Gamma_0(N) $-optimal: | no | |
| Manin constant: | 1 |
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Local data at primes of bad reduction
This elliptic curve is semistable. There are 4 primes $p$ of bad reduction:
| $p$ | Tamagawa number | Kodaira symbol | Reduction type | Root number | $\mathrm{ord}_p(N)$ | $\mathrm{ord}_p(\Delta)$ | $\mathrm{ord}_p(\mathrm{den}(j))$ |
|---|---|---|---|---|---|---|---|
| $2$ | $4$ | $I_{4}$ | split multiplicative | -1 | 1 | 4 | 4 |
| $3$ | $2$ | $I_{2}$ | split multiplicative | -1 | 1 | 2 | 2 |
| $5$ | $2$ | $I_{6}$ | nonsplit multiplicative | 1 | 1 | 6 | 6 |
| $41$ | $1$ | $I_{3}$ | nonsplit multiplicative | 1 | 1 | 3 | 3 |
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 | $\ell$-adic index |
|---|---|---|---|
| $2$ | 2B | 2.3.0.1 | $3$ |
| $3$ | 3B.1.2 | 3.8.0.2 | $8$ |
The image $H:=\rho_E(\Gal(\overline{\Q}/\Q))$ of the adelic Galois representation has level \( 2460 = 2^{2} \cdot 3 \cdot 5 \cdot 41 \), index $96$, genus $1$, and generators
$\left(\begin{array}{rr} 2110 & 3 \\ 453 & 2452 \end{array}\right),\left(\begin{array}{rr} 1477 & 12 \\ 1482 & 73 \end{array}\right),\left(\begin{array}{rr} 2449 & 12 \\ 2448 & 13 \end{array}\right),\left(\begin{array}{rr} 1 & 0 \\ 12 & 1 \end{array}\right),\left(\begin{array}{rr} 1 & 6 \\ 6 & 37 \end{array}\right),\left(\begin{array}{rr} 2259 & 1438 \\ 1046 & 221 \end{array}\right),\left(\begin{array}{rr} 1 & 12 \\ 0 & 1 \end{array}\right),\left(\begin{array}{rr} 11 & 2 \\ 2410 & 2451 \end{array}\right),\left(\begin{array}{rr} 821 & 12 \\ 820 & 1 \end{array}\right)$.
The torsion field $K:=\Q(E[2460])$ is a degree-$63479808000$ Galois extension of $\Q$ with $\Gal(K/\Q)$ isomorphic to the projection of $H$ to $\GL_2(\Z/2460\Z)$.
The table below list all primes $\ell$ for which the Serre invariants associated to the mod-$\ell$ Galois representation are exceptional.
| $\ell$ | Reduction type | Serre weight | Serre conductor |
|---|---|---|---|
| $2$ | split multiplicative | $4$ | \( 41 \) |
| $3$ | split multiplicative | $4$ | \( 2 \) |
| $5$ | nonsplit multiplicative | $6$ | \( 246 = 2 \cdot 3 \cdot 41 \) |
| $41$ | nonsplit multiplicative | $42$ | \( 30 = 2 \cdot 3 \cdot 5 \) |
Isogenies
This curve has non-trivial cyclic isogenies of degree $d$ for $d=$
2, 3 and 6.
Its isogeny class 1230.h
consists of 4 curves linked by isogenies of
degrees dividing 6.
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 $E(\Q)_{\rm tors}$ $\cong \Z/{2}\Z$ are as follows:
| $[K:\Q]$ | $K$ | $E(K)_{\rm tors}$ | Base change curve |
|---|---|---|---|
| $2$ | \(\Q(\sqrt{41}) \) | \(\Z/2\Z \oplus \Z/2\Z\) | not in database |
| $2$ | \(\Q(\sqrt{-3}) \) | \(\Z/6\Z\) | not in database |
| $3$ | \(\Q(\sqrt[3]{12})\) | \(\Z/6\Z\) | not in database |
| $4$ | \(\Q(\sqrt{12 -2 \sqrt{-5}})\) | \(\Z/4\Z\) | not in database |
| $4$ | \(\Q(\sqrt{-3}, \sqrt{41})\) | \(\Z/2\Z \oplus \Z/6\Z\) | not in database |
| $6$ | 6.0.2834352.1 | \(\Z/3\Z \oplus \Z/6\Z\) | not in database |
| $6$ | 6.2.65115458064.4 | \(\Z/2\Z \oplus \Z/6\Z\) | not in database |
| $8$ | 8.0.452121760000.6 | \(\Z/2\Z \oplus \Z/4\Z\) | not in database |
| $8$ | deg 8 | \(\Z/2\Z \oplus \Z/4\Z\) | not in database |
| $8$ | 8.0.21785760000.3 | \(\Z/12\Z\) | not in database |
| $12$ | deg 12 | \(\Z/6\Z \oplus \Z/6\Z\) | not in database |
| $12$ | deg 12 | \(\Z/12\Z\) | not in database |
| $16$ | deg 16 | \(\Z/8\Z\) | not in database |
| $16$ | deg 16 | \(\Z/2\Z \oplus \Z/12\Z\) | not in database |
| $16$ | deg 16 | \(\Z/2\Z \oplus \Z/12\Z\) | not in database |
| $18$ | 18.0.871054230365442348783579907196356687500000000.1 | \(\Z/18\Z\) | 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 | 11 | 13 | 17 | 19 | 23 | 29 | 31 | 37 | 41 | 43 | 47 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Reduction type | split | split | nonsplit | ord | ord | ord | ss | ord | ss | ord | ord | ord | nonsplit | ord | ss |
| $\lambda$-invariant(s) | 2 | 2 | 1 | 3 | 1 | 1 | 1,1 | 1 | 1,1 | 1 | 1 | 1 | 1 | 1 | 1,1 |
| $\mu$-invariant(s) | 0 | 1 | 0 | 0 | 0 | 0 | 0,0 | 0 | 0,0 | 0 | 0 | 0 | 0 | 0 | 0,0 |
$p$-adic regulators
$p$-adic regulators are not yet computed for curves that are not $\Gamma_0$-optimal.