Minimal Weierstrass equation
Minimal Weierstrass equation
Simplified equation
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\(y^2=x^3+59532x-7879520\)
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(homogenize, simplify) |
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\(y^2z=x^3+59532xz^2-7879520z^3\)
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(dehomogenize, simplify) |
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\(y^2=x^3+59532x-7879520\)
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(homogenize, minimize) |
Mordell-Weil group structure
\(\Z \oplus \Z/{2}\Z\)
Mordell-Weil generators
| $P$ | $\hat{h}(P)$ | Order |
|---|---|---|
| $(57506/25, 13863096/125)$ | $8.8772684906852793049529942844$ | $\infty$ |
| $(110, 0)$ | $0$ | $2$ |
Integral points
\( \left(110, 0\right) \)
Invariants
| Conductor: | $N$ | = | \( 487872 \) | = | $2^{6} \cdot 3^{2} \cdot 7 \cdot 11^{2}$ |
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| Discriminant: | $\Delta$ | = | $-40324547902205952$ | = | $-1 \cdot 2^{12} \cdot 3^{8} \cdot 7 \cdot 11^{8} $ |
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| j-invariant: | $j$ | = | \( \frac{4410944}{7623} \) | = | $2^{6} \cdot 3^{-2} \cdot 7^{-1} \cdot 11^{-2} \cdot 41^{3}$ |
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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: | $h_{\mathrm{Faltings}}$ | ≈ | $1.8712303594475167456040312099$ |
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| Stable Faltings height: | $h_{\mathrm{stable}}$ | ≈ | $-0.57017060184566868154179531900$ |
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| $abc$ quality: | $Q$ | ≈ | $0.8118894454035532$ | |||
| Szpiro ratio: | $\sigma_{m}$ | ≈ | $3.4572731102501684$ | |||
BSD invariants
| Analytic rank: | $r_{\mathrm{an}}$ | = | $ 1$ |
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| Mordell-Weil rank: | $r$ | = | $ 1$ |
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| Regulator: | $\mathrm{Reg}(E/\Q)$ | ≈ | $8.8772684906852793049529942844$ |
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| Real period: | $\Omega$ | ≈ | $0.19061823324976861918121002897$ |
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| Tamagawa product: | $\prod_{p}c_p$ | = | $ 32 $ = $ 2^{2}\cdot2\cdot1\cdot2^{2} $ |
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| Torsion order: | $\#E(\Q)_{\mathrm{tor}}$ | = | $2$ |
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| Special value: | $ L'(E,1)$ | ≈ | $13.537353886226143945927476596 $ |
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| Analytic order of Ш: | Ш${}_{\mathrm{an}}$ | ≈ | $1$ (rounded) |
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BSD formula
$$\begin{aligned} 13.537353886 \approx L'(E,1) & = \frac{\# ะจ(E/\Q)\cdot \Omega_E \cdot \mathrm{Reg}(E/\Q) \cdot \prod_p c_p}{\#E(\Q)_{\rm tor}^2} \\ & \approx \frac{1 \cdot 0.190618 \cdot 8.877268 \cdot 32}{2^2} \\ & \approx 13.537353886\end{aligned}$$
Modular invariants
Modular form 487872.2.a.qr
For more coefficients, see the Downloads section to the right.
| Modular degree: | 4915200 |
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| $ \Gamma_0(N) $-optimal: | not computed* (one of 2 curves in this isogeny class which might be optimal) | |
| Manin constant: | 1 (conditional*) |
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Local data at primes of bad reduction
This elliptic curve is not semistable. There are 4 primes $p$ of bad reduction:
| $p$ | Tamagawa number | Kodaira symbol | Reduction type | Root number | $\mathrm{ord}_p(N)$ | $\mathrm{ord}_p(\Delta)$ | $\mathrm{ord}_p(\mathrm{den}(j))$ |
|---|---|---|---|---|---|---|---|
| $2$ | $4$ | $I_{2}^{*}$ | additive | 1 | 6 | 12 | 0 |
| $3$ | $2$ | $I_{2}^{*}$ | additive | -1 | 2 | 8 | 2 |
| $7$ | $1$ | $I_{1}$ | nonsplit multiplicative | 1 | 1 | 1 | 1 |
| $11$ | $4$ | $I_{2}^{*}$ | additive | -1 | 2 | 8 | 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 \( 616 = 2^{3} \cdot 7 \cdot 11 \), index $12$, genus $0$, and generators
$\left(\begin{array}{rr} 1 & 0 \\ 4 & 1 \end{array}\right),\left(\begin{array}{rr} 3 & 4 \\ 8 & 11 \end{array}\right),\left(\begin{array}{rr} 613 & 4 \\ 612 & 5 \end{array}\right),\left(\begin{array}{rr} 90 & 1 \\ 263 & 0 \end{array}\right),\left(\begin{array}{rr} 1 & 2 \\ 2 & 5 \end{array}\right),\left(\begin{array}{rr} 1 & 4 \\ 0 & 1 \end{array}\right),\left(\begin{array}{rr} 309 & 4 \\ 2 & 9 \end{array}\right),\left(\begin{array}{rr} 57 & 4 \\ 114 & 9 \end{array}\right),\left(\begin{array}{rr} 81 & 540 \\ 384 & 231 \end{array}\right)$.
The torsion field $K:=\Q(E[616])$ is a degree-$3406233600$ Galois extension of $\Q$ with $\Gal(K/\Q)$ isomorphic to the projection of $H$ to $\GL_2(\Z/616\Z)$.
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 | $2$ | \( 7623 = 3^{2} \cdot 7 \cdot 11^{2} \) |
| $3$ | additive | $8$ | \( 54208 = 2^{6} \cdot 7 \cdot 11^{2} \) |
| $7$ | nonsplit multiplicative | $8$ | \( 69696 = 2^{6} \cdot 3^{2} \cdot 11^{2} \) |
| $11$ | additive | $72$ | \( 4032 = 2^{6} \cdot 3^{2} \cdot 7 \) |
Isogenies
This curve has non-trivial cyclic isogenies of degree $d$ for $d=$
2.
Its isogeny class 487872.qr
consists of 2 curves linked by isogenies of
degree 2.
Twists
The minimal quadratic twist of this elliptic curve is 7392.g2, its twist by $264$.
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.