Minimal Weierstrass equation
Minimal Weierstrass equation
Simplified equation
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\(y^2=x^3-75900x-8040625\)
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(homogenize, simplify) |
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\(y^2z=x^3-75900xz^2-8040625z^3\)
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(dehomogenize, simplify) |
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\(y^2=x^3-75900x-8040625\)
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(homogenize, minimize) |
Mordell-Weil group structure
\(\Z \oplus \Z/{2}\Z\)
Mordell-Weil generators
| $P$ | $\hat{h}(P)$ | Order |
|---|---|---|
| $(3545/4, 199325/8)$ | $5.3122899817821693724305467563$ | $\infty$ |
| $(-155, 0)$ | $0$ | $2$ |
Integral points
\( \left(-155, 0\right) \)
Invariants
| Conductor: | $N$ | = | \( 428400 \) | = | $2^{4} \cdot 3^{2} \cdot 5^{2} \cdot 7 \cdot 17$ |
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| Discriminant: | $\Delta$ | = | $54197687250000$ | = | $2^{4} \cdot 3^{7} \cdot 5^{6} \cdot 7^{3} \cdot 17^{2} $ |
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| j-invariant: | $j$ | = | \( \frac{265327034368}{297381} \) | = | $2^{14} \cdot 3^{-1} \cdot 7^{-3} \cdot 11^{3} \cdot 17^{-2} \cdot 23^{3}$ |
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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: | $h_{\mathrm{Faltings}}$ | ≈ | $1.5493666845646469909845902077$ |
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| Stable Faltings height: | $h_{\mathrm{stable}}$ | ≈ | $-0.035707476173106478485822784527$ |
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| $abc$ quality: | $Q$ | ≈ | $1.0268382310671036$ | |||
| Szpiro ratio: | $\sigma_{m}$ | ≈ | $3.4952015624835617$ | |||
BSD invariants
| Analytic rank: | $r_{\mathrm{an}}$ | = | $ 1$ |
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| Mordell-Weil rank: | $r$ | = | $ 1$ |
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| Regulator: | $\mathrm{Reg}(E/\Q)$ | ≈ | $5.3122899817821693724305467563$ |
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| Real period: | $\Omega$ | ≈ | $0.28765262205314279383009227303$ |
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| Tamagawa product: | $\prod_{p}c_p$ | = | $ 16 $ = $ 1\cdot2\cdot2^{2}\cdot1\cdot2 $ |
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| Torsion order: | $\#E(\Q)_{\mathrm{tor}}$ | = | $2$ |
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| Special value: | $ L'(E,1)$ | ≈ | $6.1123765694651327363810230056 $ |
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| Analytic order of Ш: | Ш${}_{\mathrm{an}}$ | ≈ | $1$ (rounded) |
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BSD formula
$$\begin{aligned} 6.112376569 \approx L'(E,1) & = \frac{\# ะจ(E/\Q)\cdot \Omega_E \cdot \mathrm{Reg}(E/\Q) \cdot \prod_p c_p}{\#E(\Q)_{\rm tor}^2} \\ & \approx \frac{1 \cdot 0.287653 \cdot 5.312290 \cdot 16}{2^2} \\ & \approx 6.112376569\end{aligned}$$
Modular invariants
Modular form 428400.2.a.di
For more coefficients, see the Downloads section to the right.
| Modular degree: | 1474560 |
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| $ \Gamma_0(N) $-optimal: | yes | |
| Manin constant: | 1 |
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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 | $\mathrm{ord}_p(N)$ | $\mathrm{ord}_p(\Delta)$ | $\mathrm{ord}_p(\mathrm{den}(j))$ |
|---|---|---|---|---|---|---|---|
| $2$ | $1$ | $II$ | additive | -1 | 4 | 4 | 0 |
| $3$ | $2$ | $I_{1}^{*}$ | additive | -1 | 2 | 7 | 1 |
| $5$ | $4$ | $I_0^{*}$ | additive | 1 | 2 | 6 | 0 |
| $7$ | $1$ | $I_{3}$ | nonsplit multiplicative | 1 | 1 | 3 | 3 |
| $17$ | $2$ | $I_{2}$ | nonsplit 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 |
|---|---|---|
| $2$ | 2B | 2.3.0.1 |
The image $H:=\rho_E(\Gal(\overline{\Q}/\Q))$ of the adelic Galois representation has level \( 1428 = 2^{2} \cdot 3 \cdot 7 \cdot 17 \), index $12$, genus $0$, and generators
$\left(\begin{array}{rr} 1 & 0 \\ 4 & 1 \end{array}\right),\left(\begin{array}{rr} 3 & 4 \\ 8 & 11 \end{array}\right),\left(\begin{array}{rr} 1 & 2 \\ 2 & 5 \end{array}\right),\left(\begin{array}{rr} 1 & 4 \\ 0 & 1 \end{array}\right),\left(\begin{array}{rr} 1425 & 4 \\ 1424 & 5 \end{array}\right),\left(\begin{array}{rr} 361 & 1072 \\ 356 & 1071 \end{array}\right),\left(\begin{array}{rr} 1261 & 4 \\ 1094 & 9 \end{array}\right),\left(\begin{array}{rr} 818 & 1 \\ 1019 & 0 \end{array}\right),\left(\begin{array}{rr} 478 & 1 \\ 475 & 0 \end{array}\right)$.
The torsion field $K:=\Q(E[1428])$ is a degree-$60643344384$ Galois extension of $\Q$ with $\Gal(K/\Q)$ isomorphic to the projection of $H$ to $\GL_2(\Z/1428\Z)$.
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 | $2$ | \( 1575 = 3^{2} \cdot 5^{2} \cdot 7 \) |
| $3$ | additive | $8$ | \( 6800 = 2^{4} \cdot 5^{2} \cdot 17 \) |
| $5$ | additive | $14$ | \( 17136 = 2^{4} \cdot 3^{2} \cdot 7 \cdot 17 \) |
| $7$ | nonsplit multiplicative | $8$ | \( 61200 = 2^{4} \cdot 3^{2} \cdot 5^{2} \cdot 17 \) |
| $17$ | nonsplit 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.
Its isogeny class 428400di
consists of 2 curves linked by isogenies of
degree 2.
Twists
The minimal quadratic twist of this elliptic curve is 1428a1, its twist by $60$.
Iwasawa invariants
No Iwasawa invariant data is available for this curve.
$p$-adic regulators
$p$-adic regulators are not yet computed for curves that are not $\Gamma_0$-optimal.