Minimal Weierstrass equation
Minimal Weierstrass equation
Simplified equation
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\(y^2+xy+y=x^3-x^2-257504x+141093006\)
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(homogenize, simplify) |
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\(y^2z+xyz+yz^2=x^3-x^2z-257504xz^2+141093006z^3\)
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(dehomogenize, simplify) |
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\(y^2=x^3-4120059x+9025832342\)
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(homogenize, minimize) |
Mordell-Weil group structure
\(\Z/{2}\Z\)
Mordell-Weil generators
| $P$ | $\hat{h}(P)$ | Order |
|---|---|---|
| $(-2725/4, 2721/8)$ | $0$ | $2$ |
Integral points
None
Invariants
| Conductor: | $N$ | = | \( 52983 \) | = | $3^{2} \cdot 7 \cdot 29^{2}$ |
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| Discriminant: | $\Delta$ | = | $-7499306271608652627$ | = | $-1 \cdot 3^{7} \cdot 7^{8} \cdot 29^{6} $ |
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| j-invariant: | $j$ | = | \( -\frac{4354703137}{17294403} \) | = | $-1 \cdot 3^{-1} \cdot 7^{-8} \cdot 23^{3} \cdot 71^{3}$ |
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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: | $h_{\mathrm{Faltings}}$ | ≈ | $2.3071594427182316300475244893$ |
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| Stable Faltings height: | $h_{\mathrm{stable}}$ | ≈ | $0.074205383390939770758265854656$ |
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| $abc$ quality: | $Q$ | ≈ | $1.042661241253942$ | |||
| Szpiro ratio: | $\sigma_{m}$ | ≈ | $4.693268674346346$ | |||
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: | $\Omega$ | ≈ | $0.20487960978909653889419845329$ |
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| Tamagawa product: | $\prod_{p}c_p$ | = | $ 16 $ = $ 2^{2}\cdot2\cdot2 $ |
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| Torsion order: | $\#E(\Q)_{\mathrm{tor}}$ | = | $2$ |
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| Special value: | $ L(E,1)$ | ≈ | $0.81951843915638615557679381314 $ |
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| Analytic order of Ш: | Ш${}_{\mathrm{an}}$ | = | $1$ (exact) |
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BSD formula
$$\begin{aligned} 0.819518439 \approx L(E,1) & = \frac{\# ะจ(E/\Q)\cdot \Omega_E \cdot \mathrm{Reg}(E/\Q) \cdot \prod_p c_p}{\#E(\Q)_{\rm tor}^2} \\ & \approx \frac{1 \cdot 0.204880 \cdot 1.000000 \cdot 16}{2^2} \\ & \approx 0.819518439\end{aligned}$$
Modular invariants
Modular form 52983.2.a.e
For more coefficients, see the Downloads section to the right.
| Modular degree: | 802816 |
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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 not semistable. There are 3 primes $p$ of bad reduction:
| $p$ | Tamagawa number | Kodaira symbol | Reduction type | Root number | $\mathrm{ord}_p(N)$ | $\mathrm{ord}_p(\Delta)$ | $\mathrm{ord}_p(\mathrm{den}(j))$ |
|---|---|---|---|---|---|---|---|
| $3$ | $4$ | $I_{1}^{*}$ | additive | -1 | 2 | 7 | 1 |
| $7$ | $2$ | $I_{8}$ | nonsplit multiplicative | 1 | 1 | 8 | 8 |
| $29$ | $2$ | $I_0^{*}$ | additive | 1 | 2 | 6 | 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 | 8.24.0.90 |
The image $H:=\rho_E(\Gal(\overline{\Q}/\Q))$ of the adelic Galois representation has level \( 9744 = 2^{4} \cdot 3 \cdot 7 \cdot 29 \), index $192$, genus $1$, and generators
$\left(\begin{array}{rr} 5 & 4 \\ 9740 & 9741 \end{array}\right),\left(\begin{array}{rr} 9729 & 16 \\ 9728 & 17 \end{array}\right),\left(\begin{array}{rr} 1 & 16 \\ 0 & 1 \end{array}\right),\left(\begin{array}{rr} 5480 & 4031 \\ 145 & 7046 \end{array}\right),\left(\begin{array}{rr} 349 & 3712 \\ 1508 & 9513 \end{array}\right),\left(\begin{array}{rr} 15 & 2 \\ 9646 & 9731 \end{array}\right),\left(\begin{array}{rr} 5711 & 0 \\ 0 & 9743 \end{array}\right),\left(\begin{array}{rr} 1 & 0 \\ 16 & 1 \end{array}\right),\left(\begin{array}{rr} 6961 & 3712 \\ 3944 & 465 \end{array}\right),\left(\begin{array}{rr} 6439 & 3712 \\ 6438 & 2089 \end{array}\right)$.
The torsion field $K:=\Q(E[9744])$ is a degree-$8448450232320$ Galois extension of $\Q$ with $\Gal(K/\Q)$ isomorphic to the projection of $H$ to $\GL_2(\Z/9744\Z)$.
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 |
|---|---|---|---|
| $2$ | good | $2$ | \( 7569 = 3^{2} \cdot 29^{2} \) |
| $3$ | additive | $8$ | \( 5887 = 7 \cdot 29^{2} \) |
| $7$ | nonsplit multiplicative | $8$ | \( 7569 = 3^{2} \cdot 29^{2} \) |
| $29$ | additive | $422$ | \( 63 = 3^{2} \cdot 7 \) |
Isogenies
This curve has non-trivial cyclic isogenies of degree $d$ for $d=$
2, 4 and 8.
Its isogeny class 52983a
consists of 6 curves linked by isogenies of
degrees dividing 8.
Twists
The minimal quadratic twist of this elliptic curve is 21a6, its twist by $-87$.
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 |
|---|---|---|---|
| $2$ | \(\Q(\sqrt{-3}) \) | \(\Z/2\Z \oplus \Z/2\Z\) | not in database |
| $2$ | \(\Q(\sqrt{87}) \) | \(\Z/4\Z\) | not in database |
| $2$ | \(\Q(\sqrt{-29}) \) | \(\Z/4\Z\) | not in database |
| $4$ | \(\Q(\sqrt{-3}, \sqrt{-29})\) | \(\Z/2\Z \oplus \Z/4\Z\) | not in database |
| $4$ | \(\Q(\sqrt{2}, \sqrt{87})\) | \(\Z/8\Z\) | not in database |
| $4$ | \(\Q(\sqrt{-6}, \sqrt{-58})\) | \(\Z/8\Z\) | not in database |
| $8$ | 8.0.131995609344.1 | \(\Z/2\Z \oplus \Z/4\Z\) | not in database |
| $8$ | 8.0.33790875992064.19 | \(\Z/8\Z\) | not in database |
| $8$ | 8.0.3754541776896.6 | \(\Z/2\Z \oplus \Z/8\Z\) | not in database |
| $8$ | deg 8 | \(\Z/6\Z\) | not in database |
| $16$ | deg 16 | \(\Z/4\Z \oplus \Z/4\Z\) | not in database |
| $16$ | deg 16 | \(\Z/2\Z \oplus \Z/8\Z\) | not in database |
| $16$ | deg 16 | \(\Z/2\Z \oplus \Z/8\Z\) | not in database |
| $16$ | deg 16 | \(\Z/16\Z\) | not in database |
| $16$ | deg 16 | \(\Z/16\Z\) | not in database |
| $16$ | deg 16 | \(\Z/2\Z \oplus \Z/6\Z\) | not in database |
| $16$ | deg 16 | \(\Z/12\Z\) | not in database |
| $16$ | deg 16 | \(\Z/12\Z\) | 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 | 7 | 29 |
|---|---|---|---|---|
| Reduction type | ord | add | nonsplit | add |
| $\lambda$-invariant(s) | 4 | - | 0 | - |
| $\mu$-invariant(s) | 1 | - | 0 | - |
All Iwasawa $\lambda$ and $\mu$-invariants for primes $p\ge 3$ of good reduction are zero.
An entry - indicates that the invariants are not computed because the reduction is additive.
$p$-adic regulators
All $p$-adic regulators are identically $1$ since the rank is $0$.