Invariants
| Level: | $120$ | $\SL_2$-level: | $8$ | ||||
| Index: | $24$ | $\PSL_2$-index: | $12$ | ||||
| Genus: | $0 = 1 + \frac{ 12 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 4 }{2}$ | ||||||
| Cusps: | $4$ (of which $2$ are rational) | Cusp widths | $1^{2}\cdot2\cdot8$ | Cusp orbits | $1^{2}\cdot2$ | ||
| Elliptic points: | $0$ of order $2$ and $0$ of order $3$ | ||||||
| $\Q$-gonality: | $1$ | ||||||
| $\overline{\Q}$-gonality: | $1$ | ||||||
| Rational cusps: | $2$ | ||||||
| Rational CM points: | none |
Other labels
| Cummins and Pauli (CP) label: | 8C0 |
Level structure
| $\GL_2(\Z/120\Z)$-generators: | $\begin{bmatrix}9&34\\20&63\end{bmatrix}$, $\begin{bmatrix}30&101\\43&84\end{bmatrix}$, $\begin{bmatrix}32&71\\63&40\end{bmatrix}$, $\begin{bmatrix}43&86\\84&77\end{bmatrix}$, $\begin{bmatrix}68&81\\109&116\end{bmatrix}$ |
| Contains $-I$: | no $\quad$ (see 40.12.0.ba.1 for the level structure with $-I$) |
| Cyclic 120-isogeny field degree: | $48$ |
| Cyclic 120-torsion field degree: | $1536$ |
| Full 120-torsion field degree: | $1474560$ |
Models
This modular curve is isomorphic to $\mathbb{P}^1$.
Rational points
This modular curve has infinitely many rational points, including 960 stored non-cuspidal points.
Maps to other modular curves
$j$-invariant map of degree 12 to the modular curve $X(1)$ :
| $\displaystyle j$ | $=$ | $\displaystyle \frac{2^4}{5^4}\cdot\frac{x^{12}(25x^{4}+80x^{2}y^{2}+16y^{4})^{3}}{y^{2}x^{20}(5x^{2}+y^{2})}$ |
Modular covers
This modular curve minimally covers the modular curves listed below.
| Covered curve | Level | Index | Degree | Genus | Rank |
|---|---|---|---|---|---|
| 12.12.0-4.c.1.1 | $12$ | $2$ | $2$ | $0$ | $0$ |
| 120.12.0-4.c.1.3 | $120$ | $2$ | $2$ | $0$ | $?$ |
This modular curve is minimally covered by the modular curves in the database listed below.
| Covering curve | Level | Index | Degree | Genus |
|---|---|---|---|---|
| 120.48.0-40.m.1.2 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-40.n.1.2 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-40.be.1.1 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-40.bg.1.2 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-40.bj.1.2 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-40.bk.1.1 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-40.bw.1.2 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-120.by.1.2 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-40.bz.1.1 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-120.ca.1.3 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-120.cg.1.8 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-120.ci.1.3 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-120.dp.1.1 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-120.dq.1.1 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-120.ea.1.7 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-120.ed.1.1 | $120$ | $2$ | $2$ | $0$ |
| 120.72.2-120.di.1.26 | $120$ | $3$ | $3$ | $2$ |
| 120.96.1-120.baa.1.18 | $120$ | $4$ | $4$ | $1$ |
| 120.120.4-40.bo.1.1 | $120$ | $5$ | $5$ | $4$ |
| 120.144.3-40.ce.1.5 | $120$ | $6$ | $6$ | $3$ |
| 120.240.7-40.cu.1.22 | $120$ | $10$ | $10$ | $7$ |