Minimal Weierstrass equation
Minimal Weierstrass equation
Simplified equation
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\(y^2=x^3-395640075x-2931182887750\)
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(homogenize, simplify) |
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\(y^2z=x^3-395640075xz^2-2931182887750z^3\)
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(dehomogenize, simplify) |
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\(y^2=x^3-395640075x-2931182887750\)
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(homogenize, minimize) |
Mordell-Weil group structure
\(\Z/{2}\Z \oplus \Z/{2}\Z\)
Mordell-Weil generators
| $P$ | $\hat{h}(P)$ | Order |
|---|---|---|
| $(-9755, 0)$ | $0$ | $2$ |
| $(22885, 0)$ | $0$ | $2$ |
Integral points
\( \left(-13130, 0\right) \), \( \left(-9755, 0\right) \), \( \left(22885, 0\right) \)
Invariants
| Conductor: | $N$ | = | \( 428400 \) | = | $2^{4} \cdot 3^{2} \cdot 5^{2} \cdot 7 \cdot 17$ |
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| Discriminant: | $\Delta$ | = | $251845778426780160000000000$ | = | $2^{18} \cdot 3^{10} \cdot 5^{10} \cdot 7^{8} \cdot 17^{2} $ |
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| j-invariant: | $j$ | = | \( \frac{146796951366228945601}{5397929064360000} \) | = | $2^{-6} \cdot 3^{-4} \cdot 5^{-4} \cdot 7^{-8} \cdot 17^{-2} \cdot 37^{3} \cdot 142573^{3}$ |
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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: | $h_{\mathrm{Faltings}}$ | ≈ | $3.8352576079211283097106676430$ |
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| Stable Faltings height: | $h_{\mathrm{stable}}$ | ≈ | $1.7880853268100779672954332365$ |
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| $abc$ quality: | $Q$ | ≈ | $0.9912852432443917$ | |||
| Szpiro ratio: | $\sigma_{m}$ | ≈ | $5.475221727048142$ | |||
BSD invariants
| Analytic rank: | $r_{\mathrm{an}}$ | = | $ 0$ |
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| Mordell-Weil rank: | $r$ | = | $ 0$ |
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| Regulator: | $\mathrm{Reg}(E/\Q)$ | = | $1$ |
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| Real period: | $\Omega$ | ≈ | $0.033927806285728978368303111925$ |
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| Tamagawa product: | $\prod_{p}c_p$ | = | $ 256 $ = $ 2^{2}\cdot2^{2}\cdot2^{2}\cdot2\cdot2 $ |
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| Torsion order: | $\#E(\Q)_{\mathrm{tor}}$ | = | $4$ |
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| Special value: | $ L(E,1)$ | ≈ | $2.1713796022866546155713991632 $ |
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| Analytic order of Ш: | Ш${}_{\mathrm{an}}$ | = | $4$ = $2^2$ (exact) |
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BSD formula
$$\begin{aligned} 2.171379602 \approx L(E,1) & = \frac{\# ะจ(E/\Q)\cdot \Omega_E \cdot \mathrm{Reg}(E/\Q) \cdot \prod_p c_p}{\#E(\Q)_{\rm tor}^2} \\ & \approx \frac{4 \cdot 0.033928 \cdot 1.000000 \cdot 256}{4^2} \\ & \approx 2.171379602\end{aligned}$$
Modular invariants
Modular form 428400.2.a.gi
For more coefficients, see the Downloads section to the right.
| Modular degree: | 169869312 |
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| $ \Gamma_0(N) $-optimal: | no | |
| Manin constant: | 1 (conditional*) |
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Local data at primes of bad reduction
This elliptic curve is not semistable. There are 5 primes $p$ of bad reduction:
| $p$ | Tamagawa number | Kodaira symbol | Reduction type | Root number | $\mathrm{ord}_p(N)$ | $\mathrm{ord}_p(\Delta)$ | $\mathrm{ord}_p(\mathrm{den}(j))$ |
|---|---|---|---|---|---|---|---|
| $2$ | $4$ | $I_{10}^{*}$ | additive | -1 | 4 | 18 | 6 |
| $3$ | $4$ | $I_{4}^{*}$ | additive | -1 | 2 | 10 | 4 |
| $5$ | $4$ | $I_{4}^{*}$ | additive | 1 | 2 | 10 | 4 |
| $7$ | $2$ | $I_{8}$ | nonsplit multiplicative | 1 | 1 | 8 | 8 |
| $17$ | $2$ | $I_{2}$ | split multiplicative | -1 | 1 | 2 | 2 |
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 |
|---|---|---|
| $2$ | 2Cs | 8.48.0.90 |
The image $H:=\rho_E(\Gal(\overline{\Q}/\Q))$ of the adelic Galois representation has level \( 2040 = 2^{3} \cdot 3 \cdot 5 \cdot 17 \), index $192$, genus $1$, and generators
$\left(\begin{array}{rr} 5 & 4 \\ 2036 & 2037 \end{array}\right),\left(\begin{array}{rr} 2039 & 502 \\ 0 & 1529 \end{array}\right),\left(\begin{array}{rr} 1 & 0 \\ 8 & 1 \end{array}\right),\left(\begin{array}{rr} 1687 & 2 \\ 1782 & 2035 \end{array}\right),\left(\begin{array}{rr} 1 & 8 \\ 0 & 1 \end{array}\right),\left(\begin{array}{rr} 3 & 518 \\ 502 & 2019 \end{array}\right),\left(\begin{array}{rr} 679 & 2036 \\ 0 & 2039 \end{array}\right),\left(\begin{array}{rr} 2033 & 8 \\ 2032 & 9 \end{array}\right),\left(\begin{array}{rr} 1223 & 2036 \\ 0 & 2039 \end{array}\right)$.
The torsion field $K:=\Q(E[2040])$ is a degree-$14438891520$ Galois extension of $\Q$ with $\Gal(K/\Q)$ isomorphic to the projection of $H$ to $\GL_2(\Z/2040\Z)$.
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 |
|---|---|---|---|
| $2$ | additive | $2$ | \( 225 = 3^{2} \cdot 5^{2} \) |
| $3$ | additive | $8$ | \( 47600 = 2^{4} \cdot 5^{2} \cdot 7 \cdot 17 \) |
| $5$ | additive | $18$ | \( 17136 = 2^{4} \cdot 3^{2} \cdot 7 \cdot 17 \) |
| $7$ | nonsplit multiplicative | $8$ | \( 61200 = 2^{4} \cdot 3^{2} \cdot 5^{2} \cdot 17 \) |
| $17$ | split multiplicative | $18$ | \( 25200 = 2^{4} \cdot 3^{2} \cdot 5^{2} \cdot 7 \) |
Isogenies
This curve has non-trivial cyclic isogenies of degree $d$ for $d=$
2 and 4.
Its isogeny class 428400.gi
consists of 6 curves linked by isogenies of
degrees dividing 8.
Twists
The minimal quadratic twist of this elliptic curve is 3570.t3, its twist by $60$.
Iwasawa invariants
No Iwasawa invariant data is available for this curve.
$p$-adic regulators
All $p$-adic regulators are identically $1$ since the rank is $0$.