Minimal Weierstrass equation
Minimal Weierstrass equation
Simplified equation
|
\(y^2=x^3-x^2-5889761x+21690392961\)
|
(homogenize, simplify) |
|
\(y^2z=x^3-x^2z-5889761xz^2+21690392961z^3\)
|
(dehomogenize, simplify) |
|
\(y^2=x^3-477070668x+15810865256592\)
|
(homogenize, minimize) |
Mordell-Weil group structure
\(\Z/{2}\Z\)
Mordell-Weil generators
| $P$ | $\hat{h}(P)$ | Order |
|---|---|---|
| $(-3481, 0)$ | $0$ | $2$ |
Integral points
\( \left(-3481, 0\right) \)
Invariants
| Conductor: | $N$ | = | \( 41280 \) | = | $2^{6} \cdot 3 \cdot 5 \cdot 43$ |
|
| Discriminant: | $\Delta$ | = | $-190131664378399948800000$ | = | $-1 \cdot 2^{20} \cdot 3^{22} \cdot 5^{5} \cdot 43^{2} $ |
|
| j-invariant: | $j$ | = | \( -\frac{86193969101536367161}{725294740213012500} \) | = | $-1 \cdot 2^{-2} \cdot 3^{-22} \cdot 5^{-5} \cdot 43^{-2} \cdot 4417321^{3}$ |
|
| Endomorphism ring: | $\mathrm{End}(E)$ | = | $\Z$ | |||
| Geometric endomorphism ring: | $\mathrm{End}(E_{\overline{\Q}})$ | = | \(\Z\) (no potential complex multiplication) |
|
||
| Sato-Tate group: | $\mathrm{ST}(E)$ | = | $\mathrm{SU}(2)$ | |||
| Faltings height: | $h_{\mathrm{Faltings}}$ | ≈ | $3.1495251765425027890449191446$ |
|
||
| Stable Faltings height: | $h_{\mathrm{stable}}$ | ≈ | $2.1098044057025848249190709624$ |
|
||
| $abc$ quality: | $Q$ | ≈ | $1.0397516832930858$ | |||
| Szpiro ratio: | $\sigma_{m}$ | ≈ | $5.751079023987032$ | |||
BSD invariants
| Analytic rank: | $r_{\mathrm{an}}$ | = | $ 0$ |
|
| Mordell-Weil rank: | $r$ | = | $ 0$ |
|
| Regulator: | $\mathrm{Reg}(E/\Q)$ | = | $1$ |
|
| Real period: | $\Omega$ | ≈ | $0.086345148069913990708792415634$ |
|
| Tamagawa product: | $\prod_{p}c_p$ | = | $ 16 $ = $ 2^{2}\cdot2\cdot1\cdot2 $ |
|
| Torsion order: | $\#E(\Q)_{\mathrm{tor}}$ | = | $2$ |
|
| Special value: | $ L(E,1)$ | ≈ | $1.3815223691186238513406786502 $ |
|
| Analytic order of Ш: | Ш${}_{\mathrm{an}}$ | = | $4$ = $2^2$ (exact) |
|
BSD formula
$$\begin{aligned} 1.381522369 \approx L(E,1) & = \frac{\# ะจ(E/\Q)\cdot \Omega_E \cdot \mathrm{Reg}(E/\Q) \cdot \prod_p c_p}{\#E(\Q)_{\rm tor}^2} \\ & \approx \frac{4 \cdot 0.086345 \cdot 1.000000 \cdot 16}{2^2} \\ & \approx 1.381522369\end{aligned}$$
Modular invariants
For more coefficients, see the Downloads section to the right.
| Modular degree: | 4055040 |
|
| $ \Gamma_0(N) $-optimal: | no | |
| Manin constant: | 1 |
|
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 | $\mathrm{ord}_p(N)$ | $\mathrm{ord}_p(\Delta)$ | $\mathrm{ord}_p(\mathrm{den}(j))$ |
|---|---|---|---|---|---|---|---|
| $2$ | $4$ | $I_{10}^{*}$ | additive | -1 | 6 | 20 | 2 |
| $3$ | $2$ | $I_{22}$ | nonsplit multiplicative | 1 | 1 | 22 | 22 |
| $5$ | $1$ | $I_{5}$ | nonsplit multiplicative | 1 | 1 | 5 | 5 |
| $43$ | $2$ | $I_{2}$ | 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 \( 2580 = 2^{2} \cdot 3 \cdot 5 \cdot 43 \), index $12$, genus $0$, and generators
$\left(\begin{array}{rr} 1 & 0 \\ 4 & 1 \end{array}\right),\left(\begin{array}{rr} 3 & 4 \\ 8 & 11 \end{array}\right),\left(\begin{array}{rr} 1936 & 649 \\ 645 & 1936 \end{array}\right),\left(\begin{array}{rr} 1 & 2 \\ 2 & 5 \end{array}\right),\left(\begin{array}{rr} 1 & 4 \\ 0 & 1 \end{array}\right),\left(\begin{array}{rr} 1721 & 4 \\ 862 & 9 \end{array}\right),\left(\begin{array}{rr} 1034 & 1 \\ 2063 & 0 \end{array}\right),\left(\begin{array}{rr} 1981 & 4 \\ 1382 & 9 \end{array}\right),\left(\begin{array}{rr} 2577 & 4 \\ 2576 & 5 \end{array}\right)$.
The torsion field $K:=\Q(E[2580])$ is a degree-$615165788160$ Galois extension of $\Q$ with $\Gal(K/\Q)$ isomorphic to the projection of $H$ to $\GL_2(\Z/2580\Z)$.
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 | $2$ | \( 5 \) |
| $3$ | nonsplit multiplicative | $4$ | \( 13760 = 2^{6} \cdot 5 \cdot 43 \) |
| $5$ | nonsplit multiplicative | $6$ | \( 8256 = 2^{6} \cdot 3 \cdot 43 \) |
| $11$ | good | $2$ | \( 13760 = 2^{6} \cdot 5 \cdot 43 \) |
| $43$ | nonsplit multiplicative | $44$ | \( 960 = 2^{6} \cdot 3 \cdot 5 \) |
Isogenies
This curve has non-trivial cyclic isogenies of degree $d$ for $d=$
2.
Its isogeny class 41280.p
consists of 2 curves linked by isogenies of
degree 2.
Twists
The minimal quadratic twist of this elliptic curve is 1290.b2, its twist by $-8$.
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 |
|---|---|---|---|
| $2$ | \(\Q(\sqrt{-5}) \) | \(\Z/2\Z \oplus \Z/2\Z\) | not in database |
| $4$ | 4.2.5325120.2 | \(\Z/4\Z\) | not in database |
| $8$ | deg 8 | \(\Z/2\Z \oplus \Z/4\Z\) | not in database |
| $8$ | 8.0.11342761205760000.29 | \(\Z/2\Z \oplus \Z/4\Z\) | not in database |
| $8$ | deg 8 | \(\Z/6\Z\) | not in database |
| $16$ | deg 16 | \(\Z/8\Z\) | not in database |
| $16$ | deg 16 | \(\Z/2\Z \oplus \Z/6\Z\) | 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 | 43 |
|---|---|---|---|---|
| Reduction type | add | nonsplit | nonsplit | nonsplit |
| $\lambda$-invariant(s) | - | 0 | 0 | 0 |
| $\mu$-invariant(s) | - | 0 | 0 | 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 $0$.