Minimal Weierstrass equation
Minimal Weierstrass equation
Simplified equation
|
\(y^2+xy+y=x^3-x^2-5172143x+4528746416\)
|
(homogenize, simplify) |
|
\(y^2z+xyz+yz^2=x^3-x^2z-5172143xz^2+4528746416z^3\)
|
(dehomogenize, simplify) |
|
\(y^2=x^3-82754283x+289757016358\)
|
(homogenize, minimize) |
Mordell-Weil group structure
\(\Z\)
Mordell-Weil generators
| $P$ | $\hat{h}(P)$ | Order |
|---|---|---|
| $(-42, 68911)$ | $0.92896743102657374424720610141$ | $\infty$ |
Integral points
\( \left(-42, 68911\right) \), \( \left(-42, -68870\right) \), \( \left(1491, 10657\right) \), \( \left(1491, -12149\right) \)
Invariants
| Conductor: | $N$ | = | \( 91035 \) | = | $3^{2} \cdot 5 \cdot 7 \cdot 17^{2}$ |
|
| Discriminant: | $\Delta$ | = | $-5184517159768905$ | = | $-1 \cdot 3^{21} \cdot 5 \cdot 7^{3} \cdot 17^{2} $ |
|
| j-invariant: | $j$ | = | \( -\frac{72628961394279272329}{24608375505} \) | = | $-1 \cdot 3^{-15} \cdot 5^{-1} \cdot 7^{-3} \cdot 17^{4} \cdot 31^{3} \cdot 3079^{3}$ |
|
| 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: | $h_{\mathrm{Faltings}}$ | ≈ | $2.3724790399179452074623330097$ |
|
||
| Stable Faltings height: | $h_{\mathrm{stable}}$ | ≈ | $1.3509706715745210150564546216$ |
|
||
| $abc$ quality: | $Q$ | ≈ | $1.0757252803348085$ | |||
| Szpiro ratio: | $\sigma_{m}$ | ≈ | $5.078378129181556$ | |||
BSD invariants
| Analytic rank: | $r_{\mathrm{an}}$ | = | $ 1$ |
|
| Mordell-Weil rank: | $r$ | = | $ 1$ |
|
| Regulator: | $\mathrm{Reg}(E/\Q)$ | ≈ | $0.92896743102657374424720610141$ |
|
| Real period: | $\Omega$ | ≈ | $0.34743131406140712613467744579$ |
|
| Tamagawa product: | $\prod_{p}c_p$ | = | $ 12 $ = $ 2^{2}\cdot1\cdot3\cdot1 $ |
|
| Torsion order: | $\#E(\Q)_{\mathrm{tor}}$ | = | $1$ |
|
| Special value: | $ L'(E,1)$ | ≈ | $3.8730285033817452611251540889 $ |
|
| Analytic order of Ш: | Ш${}_{\mathrm{an}}$ | ≈ | $1$ (rounded) |
|
BSD formula
$$\begin{aligned} 3.873028503 \approx L'(E,1) & = \frac{\# ะจ(E/\Q)\cdot \Omega_E \cdot \mathrm{Reg}(E/\Q) \cdot \prod_p c_p}{\#E(\Q)_{\rm tor}^2} \\ & \approx \frac{1 \cdot 0.347431 \cdot 0.928967 \cdot 12}{1^2} \\ & \approx 3.873028503\end{aligned}$$
Modular invariants
Modular form 91035.2.a.n
For more coefficients, see the Downloads section to the right.
| Modular degree: | 1607040 |
|
| $ \Gamma_0(N) $-optimal: | yes | |
| 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 | $\mathrm{ord}_p(N)$ | $\mathrm{ord}_p(\Delta)$ | $\mathrm{ord}_p(\mathrm{den}(j))$ |
|---|---|---|---|---|---|---|---|
| $3$ | $4$ | $I_{15}^{*}$ | additive | -1 | 2 | 21 | 15 |
| $5$ | $1$ | $I_{1}$ | nonsplit multiplicative | 1 | 1 | 1 | 1 |
| $7$ | $3$ | $I_{3}$ | split multiplicative | -1 | 1 | 3 | 3 |
| $17$ | $1$ | $II$ | additive | 1 | 2 | 2 | 0 |
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 \( 420 = 2^{2} \cdot 3 \cdot 5 \cdot 7 \), index $2$, genus $0$, and generators
$\left(\begin{array}{rr} 1 & 1 \\ 419 & 0 \end{array}\right),\left(\begin{array}{rr} 1 & 0 \\ 2 & 1 \end{array}\right),\left(\begin{array}{rr} 1 & 2 \\ 0 & 1 \end{array}\right),\left(\begin{array}{rr} 337 & 2 \\ 337 & 3 \end{array}\right),\left(\begin{array}{rr} 211 & 2 \\ 211 & 3 \end{array}\right),\left(\begin{array}{rr} 241 & 2 \\ 241 & 3 \end{array}\right),\left(\begin{array}{rr} 419 & 2 \\ 418 & 3 \end{array}\right),\left(\begin{array}{rr} 281 & 2 \\ 281 & 3 \end{array}\right)$.
The torsion field $K:=\Q(E[420])$ is a degree-$2229534720$ Galois extension of $\Q$ with $\Gal(K/\Q)$ isomorphic to the projection of $H$ to $\GL_2(\Z/420\Z)$.
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 |
|---|---|---|---|
| $3$ | additive | $6$ | \( 1445 = 5 \cdot 17^{2} \) |
| $5$ | nonsplit multiplicative | $6$ | \( 18207 = 3^{2} \cdot 7 \cdot 17^{2} \) |
| $7$ | split multiplicative | $8$ | \( 13005 = 3^{2} \cdot 5 \cdot 17^{2} \) |
| $17$ | additive | $66$ | \( 315 = 3^{2} \cdot 5 \cdot 7 \) |
Isogenies
This curve has no rational isogenies. Its isogeny class 91035.n consists of this curve only.
Twists
The minimal quadratic twist of this elliptic curve is 30345.be1, its twist by $-3$.
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 |
|---|---|---|---|
| $3$ | 3.1.121380.1 | \(\Z/2\Z\) | not in database |
| $6$ | 6.0.6187903848000.1 | \(\Z/2\Z \oplus \Z/2\Z\) | 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 | ord | add | nonsplit | split | ord | ord | add | ss | ss | ord | ord | ord | ord | ord | ord |
| $\lambda$-invariant(s) | 3 | - | 1 | 2 | 1 | 1 | - | 1,1 | 1,1 | 1 | 1 | 1 | 1 | 1 | 1 |
| $\mu$-invariant(s) | 0 | - | 0 | 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
Note: $p$-adic regulator data only exists for primes $p\ge 5$ of good ordinary reduction.