Minimal Weierstrass equation
Minimal Weierstrass equation
Simplified equation
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\(y^2=x^3+x^2-22863465x+42072110275\)
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(homogenize, simplify) |
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\(y^2z=x^3+x^2z-22863465xz^2+42072110275z^3\)
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(dehomogenize, simplify) |
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\(y^2=x^3-1851940692x+30676124212524\)
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(homogenize, minimize) |
Mordell-Weil group structure
trivial
Invariants
| Conductor: | $N$ | = | \( 90160 \) | = | $2^{4} \cdot 5 \cdot 7^{2} \cdot 23$ |
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| Discriminant: | $\Delta$ | = | $-41434507187500000000$ | = | $-1 \cdot 2^{8} \cdot 5^{13} \cdot 7^{8} \cdot 23 $ |
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| j-invariant: | $j$ | = | \( -\frac{895623732682341376}{28076171875} \) | = | $-1 \cdot 2^{10} \cdot 5^{-13} \cdot 7 \cdot 23^{-1} \cdot 49993^{3}$ |
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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: | $h_{\mathrm{Faltings}}$ | ≈ | $2.8604054414740445337709360882$ |
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| Stable Faltings height: | $h_{\mathrm{stable}}$ | ≈ | $1.1010338883972054574225461783$ |
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| $abc$ quality: | $Q$ | ≈ | $0.9811694972399179$ | |||
| Szpiro ratio: | $\sigma_{m}$ | ≈ | $5.473480788207438$ | |||
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: | $\Omega$ | ≈ | $0.18985855400669953458817504213$ |
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| Tamagawa product: | $\prod_{p}c_p$ | = | $ 13 $ = $ 1\cdot13\cdot1\cdot1 $ |
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| Torsion order: | $\#E(\Q)_{\mathrm{tor}}$ | = | $1$ |
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| Special value: | $ L(E,1)$ | ≈ | $2.4681612020870939496462755478 $ |
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| Analytic order of Ш: | Ш${}_{\mathrm{an}}$ | = | $1$ (exact) |
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BSD formula
$$\begin{aligned} 2.468161202 \approx L(E,1) & = \frac{\# ะจ(E/\Q)\cdot \Omega_E \cdot \mathrm{Reg}(E/\Q) \cdot \prod_p c_p}{\#E(\Q)_{\rm tor}^2} \\ & \approx \frac{1 \cdot 0.189859 \cdot 1.000000 \cdot 13}{1^2} \\ & \approx 2.468161202\end{aligned}$$
Modular invariants
Modular form 90160.2.a.x
For more coefficients, see the Downloads section to the right.
| Modular degree: | 7076160 |
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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 | $\mathrm{ord}_p(N)$ | $\mathrm{ord}_p(\Delta)$ | $\mathrm{ord}_p(\mathrm{den}(j))$ |
|---|---|---|---|---|---|---|---|
| $2$ | $1$ | $I_0^{*}$ | additive | 1 | 4 | 8 | 0 |
| $5$ | $13$ | $I_{13}$ | split multiplicative | -1 | 1 | 13 | 13 |
| $7$ | $1$ | $IV^{*}$ | additive | 1 | 2 | 8 | 0 |
| $23$ | $1$ | $I_{1}$ | nonsplit multiplicative | 1 | 1 | 1 | 1 |
Galois representations
The $\ell$-adic Galois representation has maximal image for all primes $\ell$.
The image $H:=\rho_E(\Gal(\overline{\Q}/\Q))$ of the adelic Galois representation has level \( 230 = 2 \cdot 5 \cdot 23 \), index $2$, genus $0$, and generators
$\left(\begin{array}{rr} 1 & 2 \\ 0 & 1 \end{array}\right),\left(\begin{array}{rr} 229 & 2 \\ 228 & 3 \end{array}\right),\left(\begin{array}{rr} 51 & 2 \\ 51 & 3 \end{array}\right),\left(\begin{array}{rr} 1 & 0 \\ 2 & 1 \end{array}\right),\left(\begin{array}{rr} 1 & 1 \\ 229 & 0 \end{array}\right),\left(\begin{array}{rr} 47 & 2 \\ 47 & 3 \end{array}\right)$.
The torsion field $K:=\Q(E[230])$ is a degree-$384721920$ Galois extension of $\Q$ with $\Gal(K/\Q)$ isomorphic to the projection of $H$ to $\GL_2(\Z/230\Z)$.
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 | $2$ | \( 5635 = 5 \cdot 7^{2} \cdot 23 \) |
| $5$ | split multiplicative | $6$ | \( 18032 = 2^{4} \cdot 7^{2} \cdot 23 \) |
| $7$ | additive | $26$ | \( 1840 = 2^{4} \cdot 5 \cdot 23 \) |
| $13$ | good | $2$ | \( 18032 = 2^{4} \cdot 7^{2} \cdot 23 \) |
| $23$ | nonsplit multiplicative | $24$ | \( 3920 = 2^{4} \cdot 5 \cdot 7^{2} \) |
Isogenies
This curve has no rational isogenies. Its isogeny class 90160y consists of this curve only.
Twists
The minimal quadratic twist of this elliptic curve is 45080bb1, its twist by $28$.
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 $E(\Q)_{\rm tors}$ (which is trivial) are as follows:
| $[K:\Q]$ | $K$ | $E(K)_{\rm tors}$ | Base change curve |
|---|---|---|---|
| $3$ | 3.1.22540.1 | \(\Z/2\Z\) | not in database |
| $6$ | 6.0.58425934000.1 | \(\Z/2\Z \oplus \Z/2\Z\) | not in database |
| $8$ | deg 8 | \(\Z/3\Z\) | not in database |
| $12$ | deg 12 | \(\Z/4\Z\) | 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 | 7 | 11 | 13 | 17 | 19 | 23 | 29 | 31 | 37 | 41 | 43 | 47 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Reduction type | add | ord | split | add | ord | ord | ord | ord | nonsplit | ord | ord | ord | ord | ord | ord |
| $\lambda$-invariant(s) | - | 2 | 1 | - | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| $\mu$-invariant(s) | - | 0 | 0 | - | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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 $0$.