Minimal Weierstrass equation
Minimal Weierstrass equation
Simplified equation
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\(y^2+xy=x^3-3935x-94775\)
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(homogenize, simplify) |
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\(y^2z+xyz=x^3-3935xz^2-94775z^3\)
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(dehomogenize, simplify) |
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\(y^2=x^3-5099787x-4406523066\)
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(homogenize, minimize) |
Mordell-Weil group structure
\(\Z/{2}\Z\)
Mordell-Weil generators
| $P$ | $\hat{h}(P)$ | Order |
|---|---|---|
| $(-34, 17)$ | $0$ | $2$ |
Integral points
\( \left(-34, 17\right) \)
Invariants
| Conductor: | $N$ | = | \( 15730 \) | = | $2 \cdot 5 \cdot 11^{2} \cdot 13$ |
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| Discriminant: | $\Delta$ | = | $46060586000$ | = | $2^{4} \cdot 5^{3} \cdot 11^{6} \cdot 13 $ |
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| j-invariant: | $j$ | = | \( \frac{3803721481}{26000} \) | = | $2^{-4} \cdot 5^{-3} \cdot 7^{3} \cdot 13^{-1} \cdot 223^{3}$ |
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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: | $h_{\mathrm{Faltings}}$ | ≈ | $0.88009089454279401192318561520$ |
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| Stable Faltings height: | $h_{\mathrm{stable}}$ | ≈ | $-0.31885674185639126010778617378$ |
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| $abc$ quality: | $Q$ | ≈ | $0.906187683689355$ | |||
| Szpiro ratio: | $\sigma_{m}$ | ≈ | $3.77164355056109$ | |||
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: | $\Omega$ | ≈ | $0.60303384343642740867015188953$ |
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| Tamagawa product: | $\prod_{p}c_p$ | = | $ 24 $ = $ 2^{2}\cdot3\cdot2\cdot1 $ |
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| Torsion order: | $\#E(\Q)_{\mathrm{tor}}$ | = | $2$ |
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| Special value: | $ L(E,1)$ | ≈ | $3.6182030606185644520209113372 $ |
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| Analytic order of Ш: | Ш${}_{\mathrm{an}}$ | = | $1$ (exact) |
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BSD formula
$$\begin{aligned} 3.618203061 \approx L(E,1) & = \frac{\# ะจ(E/\Q)\cdot \Omega_E \cdot \mathrm{Reg}(E/\Q) \cdot \prod_p c_p}{\#E(\Q)_{\rm tor}^2} \\ & \approx \frac{1 \cdot 0.603034 \cdot 1.000000 \cdot 24}{2^2} \\ & \approx 3.618203061\end{aligned}$$
Modular invariants
For more coefficients, see the Downloads section to the right.
| Modular degree: | 25920 |
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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 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 |
| $5$ | $3$ | $I_{3}$ | split multiplicative | -1 | 1 | 3 | 3 |
| $11$ | $2$ | $I_0^{*}$ | additive | -1 | 2 | 6 | 0 |
| $13$ | $1$ | $I_{1}$ | nonsplit multiplicative | 1 | 1 | 1 | 1 |
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 | 4.6.0.3 |
| $3$ | 3B | 3.4.0.1 |
The image $H:=\rho_E(\Gal(\overline{\Q}/\Q))$ of the adelic Galois representation has level \( 17160 = 2^{3} \cdot 3 \cdot 5 \cdot 11 \cdot 13 \), index $384$, genus $9$, and generators
$\left(\begin{array}{rr} 1 & 12 \\ 12 & 145 \end{array}\right),\left(\begin{array}{rr} 9359 & 0 \\ 0 & 17159 \end{array}\right),\left(\begin{array}{rr} 5721 & 3124 \\ 4180 & 11001 \end{array}\right),\left(\begin{array}{rr} 7 & 24 \\ 492 & 1687 \end{array}\right),\left(\begin{array}{rr} 1266 & 14047 \\ 209 & 10880 \end{array}\right),\left(\begin{array}{rr} 17137 & 24 \\ 17136 & 25 \end{array}\right),\left(\begin{array}{rr} 1 & 24 \\ 0 & 1 \end{array}\right),\left(\begin{array}{rr} 11056 & 7821 \\ 11715 & 7426 \end{array}\right),\left(\begin{array}{rr} 21 & 4 \\ 17060 & 17141 \end{array}\right),\left(\begin{array}{rr} 1 & 0 \\ 24 & 1 \end{array}\right),\left(\begin{array}{rr} 8581 & 1584 \\ 8580 & 1 \end{array}\right),\left(\begin{array}{rr} 12871 & 1584 \\ 0 & 1 \end{array}\right)$.
The torsion field $K:=\Q(E[17160])$ is a degree-$31882346496000$ Galois extension of $\Q$ with $\Gal(K/\Q)$ isomorphic to the projection of $H$ to $\GL_2(\Z/17160\Z)$.
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 | $4$ | \( 7865 = 5 \cdot 11^{2} \cdot 13 \) |
| $3$ | good | $2$ | \( 3146 = 2 \cdot 11^{2} \cdot 13 \) |
| $5$ | split multiplicative | $6$ | \( 3146 = 2 \cdot 11^{2} \cdot 13 \) |
| $11$ | additive | $62$ | \( 130 = 2 \cdot 5 \cdot 13 \) |
| $13$ | nonsplit multiplicative | $14$ | \( 1210 = 2 \cdot 5 \cdot 11^{2} \) |
Isogenies
This curve has non-trivial cyclic isogenies of degree $d$ for $d=$
2, 3 and 6.
Its isogeny class 15730y
consists of 4 curves linked by isogenies of
degrees dividing 6.
Twists
The minimal quadratic twist of this elliptic curve is 130a1, its twist by $-11$.
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 |
|---|---|---|---|
| $2$ | \(\Q(\sqrt{65}) \) | \(\Z/2\Z \oplus \Z/2\Z\) | not in database |
| $2$ | \(\Q(\sqrt{-11}) \) | \(\Z/6\Z\) | 2.0.11.1-16900.2-b4 |
| $4$ | 4.0.125840.1 | \(\Z/4\Z\) | not in database |
| $4$ | \(\Q(\sqrt{-11}, \sqrt{65})\) | \(\Z/2\Z \oplus \Z/6\Z\) | not in database |
| $6$ | 6.2.16422346512.2 | \(\Z/6\Z\) | not in database |
| $8$ | 8.0.66905856160000.36 | \(\Z/2\Z \oplus \Z/4\Z\) | not in database |
| $8$ | deg 8 | \(\Z/2\Z \oplus \Z/4\Z\) | not in database |
| $8$ | 8.0.15835705600.3 | \(\Z/12\Z\) | not in database |
| $12$ | deg 12 | \(\Z/3\Z \oplus \Z/6\Z\) | not in database |
| $12$ | deg 12 | \(\Z/2\Z \oplus \Z/6\Z\) | not in database |
| $16$ | deg 16 | \(\Z/4\Z \oplus \Z/4\Z\) | not in database |
| $16$ | deg 16 | \(\Z/24\Z\) | 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 |
| $18$ | 18.0.46574005183485364140397386187500000000.3 | \(\Z/18\Z\) | 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 | 11 | 13 |
|---|---|---|---|---|---|
| Reduction type | split | ord | split | add | nonsplit |
| $\lambda$-invariant(s) | 2 | 4 | 3 | - | 0 |
| $\mu$-invariant(s) | 0 | 0 | 0 | - | 0 |
All Iwasawa $\lambda$ and $\mu$-invariants for primes $p\ge 5$ 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 $0$.