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: | $\begin{bmatrix}20&61\\91&118\end{bmatrix}$, $\begin{bmatrix}28&7\\55&92\end{bmatrix}$, $\begin{bmatrix}54&23\\67&106\end{bmatrix}$, $\begin{bmatrix}78&77\\13&34\end{bmatrix}$, $\begin{bmatrix}86&37\\83&92\end{bmatrix}$ |
| Contains $-I$: | no $\quad$ (see 24.12.0.bb.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 950 stored non-cuspidal points.
Maps to other modular curves
$j$-invariant map of degree 12 to the modular curve $X(1)$ :
| $\displaystyle j$ | $=$ | $\displaystyle \frac{1}{2^{12}\cdot3}\cdot\frac{x^{12}(9x^{4}+384x^{2}y^{2}+1024y^{4})^{3}}{y^{8}x^{14}(3x^{2}+128y^{2})}$ |
Modular covers
This modular curve minimally covers the modular curves listed below.
| Covered curve | Level | Index | Degree | Genus | Rank |
|---|---|---|---|---|---|
| 40.12.0-4.c.1.4 | $40$ | $2$ | $2$ | $0$ | $0$ |
| 60.12.0-4.c.1.1 | $60$ | $2$ | $2$ | $0$ | $0$ |
This modular curve is minimally covered by the modular curves in the database listed below.
| Covering curve | Level | Index | Degree | Genus |
|---|---|---|---|---|
| 120.48.0-24.l.1.12 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-24.o.1.3 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-24.bd.1.4 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-24.be.1.1 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-24.bg.1.2 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-24.bj.1.5 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-24.bt.1.4 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-24.bu.1.1 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-120.cv.1.7 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-120.cx.1.3 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-120.cz.1.6 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-120.db.1.3 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-120.dt.1.5 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-120.dv.1.3 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-120.eb.1.8 | $120$ | $2$ | $2$ | $0$ |
| 120.48.0-120.ed.1.3 | $120$ | $2$ | $2$ | $0$ |
| 120.72.2-24.cv.1.31 | $120$ | $3$ | $3$ | $2$ |
| 120.96.1-24.iv.1.23 | $120$ | $4$ | $4$ | $1$ |
| 120.120.4-120.cd.1.26 | $120$ | $5$ | $5$ | $4$ |
| 120.144.3-120.byp.1.37 | $120$ | $6$ | $6$ | $3$ |
| 120.240.7-120.dj.1.7 | $120$ | $10$ | $10$ | $7$ |