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 | $2^{2}\cdot4^{2}$ | 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: | 4E0 |
Level structure
| $\GL_2(\Z/120\Z)$-generators: | $\begin{bmatrix}47&48\\36&67\end{bmatrix}$, $\begin{bmatrix}55&68\\1&79\end{bmatrix}$, $\begin{bmatrix}65&24\\47&95\end{bmatrix}$, $\begin{bmatrix}87&44\\115&21\end{bmatrix}$, $\begin{bmatrix}109&8\\18&25\end{bmatrix}$ |
| Contains $-I$: | no $\quad$ (see 20.12.0.g.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 639 stored non-cuspidal points.
Maps to other modular curves
$j$-invariant map of degree 12 to the modular curve $X(1)$ :
| $\displaystyle j$ | $=$ | $\displaystyle \frac{2^{11}}{5}\cdot\frac{(20x+y)^{12}(3200x^{4}+1600x^{3}y+440x^{2}y^{2}+60xy^{3}+3y^{4})^{3}}{y^{2}(8x+y)^{2}(20x+y)^{12}(80x^{2}+20xy+y^{2})^{4}}$ |
Modular covers
This modular curve minimally covers the modular curves listed below.
| Covered curve | Level | Index | Degree | Genus | Rank |
|---|---|---|---|---|---|
| 24.12.0-4.c.1.5 | $24$ | $2$ | $2$ | $0$ | $0$ |
| 120.12.0-4.c.1.5 | $120$ | $2$ | $2$ | $0$ | $?$ |
This modular curve is minimally covered by the modular curves in the database listed below.
| Covering curve | Level | Index | Degree | Genus |
|---|---|---|---|---|
| 120.120.4-20.k.1.4 | $120$ | $5$ | $5$ | $4$ |
| 120.144.3-20.o.1.3 | $120$ | $6$ | $6$ | $3$ |
| 120.240.7-20.s.1.9 | $120$ | $10$ | $10$ | $7$ |
| 120.48.0-40.bi.1.5 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-40.bi.1.7 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-40.bj.1.9 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-40.bj.1.11 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-40.bs.1.5 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-40.bs.1.7 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-40.bt.1.5 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-40.bt.1.6 | $120$ | $2$ | $2$ | $0$ |
| 120.72.2-60.s.1.10 | $120$ | $3$ | $3$ | $2$ |
| 120.96.1-60.k.1.21 | $120$ | $4$ | $4$ | $1$ |
| 120.48.0-120.cm.1.4 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-120.cm.1.14 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-120.cn.1.2 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-120.cn.1.16 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-120.cu.1.3 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-120.cu.1.16 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-120.cv.1.6 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-120.cv.1.15 | $120$ | $2$ | $2$ | $0$ |