Invariants
| Level: | $120$ | $\SL_2$-level: | $24$ | Newform level: | $576$ | ||
| Index: | $144$ | $\PSL_2$-index: | $72$ | ||||
| Genus: | $4 = 1 + \frac{ 72 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 6 }{2}$ | ||||||
| Cusps: | $6$ (none of which are rational) | Cusp widths | $6^{4}\cdot24^{2}$ | Cusp orbits | $2^{3}$ | ||
| Elliptic points: | $0$ of order $2$ and $0$ of order $3$ | ||||||
| Analytic rank: | not computed | ||||||
| $\Q$-gonality: | $3 \le \gamma \le 6$ | ||||||
| $\overline{\Q}$-gonality: | $3 \le \gamma \le 4$ | ||||||
| Rational cusps: | $0$ | ||||||
| Rational CM points: | none |
Other labels
| Cummins and Pauli (CP) label: | 24D4 |
Level structure
| $\GL_2(\Z/120\Z)$-generators: | $\begin{bmatrix}21&109\\76&85\end{bmatrix}$, $\begin{bmatrix}27&59\\100&81\end{bmatrix}$, $\begin{bmatrix}39&74\\104&77\end{bmatrix}$, $\begin{bmatrix}49&40\\88&59\end{bmatrix}$, $\begin{bmatrix}67&118\\16&83\end{bmatrix}$ |
| Contains $-I$: | no $\quad$ (see 24.72.4.ci.1 for the level structure with $-I$) |
| Cyclic 120-isogeny field degree: | $48$ |
| Cyclic 120-torsion field degree: | $1536$ |
| Full 120-torsion field degree: | $245760$ |
Models
Canonical model in $\mathbb{P}^{ 3 }$
| $ 0 $ | $=$ | $ 16 y^{2} + 2 z^{2} + w^{2} $ |
| $=$ | $2 x^{3} - y z w$ |
Singular plane model Singular plane model
| $ 0 $ | $=$ | $ x^{6} + y^{4} z^{2} + 2 y^{2} z^{4} $ |
Rational points
This modular curve has no real points and no $\Q_p$ points for $p=7$, and therefore no rational points.
Maps to other modular curves
$j$-invariant map of degree 72 from the canonical model of this modular curve to the modular curve $X(1)$ :
| $\displaystyle j$ | $=$ | $\displaystyle -2^3\,\frac{(4z^{4}-28z^{2}w^{2}+w^{4})^{3}}{w^{2}z^{2}(2z^{2}+w^{2})^{4}}$ |
Map of degree 1 from the canonical model of this modular curve to the plane model of the modular curve 24.72.4.ci.1 :
| $\displaystyle X$ | $=$ | $\displaystyle x$ |
| $\displaystyle Y$ | $=$ | $\displaystyle 2y$ |
| $\displaystyle Z$ | $=$ | $\displaystyle \frac{1}{2}z$ |
Equation of the image curve:
| $0$ | $=$ | $ X^{6}+Y^{4}Z^{2}+2Y^{2}Z^{4} $ |
Modular covers
The following modular covers realize this modular curve as a fiber product over $X(1)$.
| Factor curve | Level | Index | Degree | Genus | Rank |
|---|---|---|---|---|---|
| $X_{\mathrm{ns}}^+(3)$ | $3$ | $48$ | $24$ | $0$ | $0$ |
| 40.48.0-8.j.1.2 | $40$ | $3$ | $3$ | $0$ | $0$ |
This modular curve minimally covers the modular curves listed below.
| Covered curve | Level | Index | Degree | Genus | Rank |
|---|---|---|---|---|---|
| 40.48.0-8.j.1.2 | $40$ | $3$ | $3$ | $0$ | $0$ |
| 120.72.2-24.j.1.2 | $120$ | $2$ | $2$ | $2$ | $?$ |
| 120.72.2-24.j.1.13 | $120$ | $2$ | $2$ | $2$ | $?$ |
| 120.72.2-24.ci.1.14 | $120$ | $2$ | $2$ | $2$ | $?$ |
| 120.72.2-24.ci.1.23 | $120$ | $2$ | $2$ | $2$ | $?$ |
| 120.72.2-24.cw.1.14 | $120$ | $2$ | $2$ | $2$ | $?$ |
| 120.72.2-24.cw.1.27 | $120$ | $2$ | $2$ | $2$ | $?$ |
This modular curve is minimally covered by the modular curves in the database listed below.