Invariants
| Level: | $312$ | $\SL_2$-level: | $8$ | ||||
| Index: | $48$ | $\PSL_2$-index: | $24$ | ||||
| Genus: | $0 = 1 + \frac{ 24 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 6 }{2}$ | ||||||
| Cusps: | $6$ (none of which are rational) | Cusp widths | $2^{4}\cdot8^{2}$ | Cusp orbits | $2^{3}$ | ||
| Elliptic points: | $0$ of order $2$ and $0$ of order $3$ | ||||||
| $\Q$-gonality: | $1 \le \gamma \le 2$ | ||||||
| $\overline{\Q}$-gonality: | $1$ | ||||||
| Rational cusps: | $0$ | ||||||
| Rational CM points: | none |
Other labels
| Cummins and Pauli (CP) label: | 8G0 |
Level structure
| $\GL_2(\Z/312\Z)$-generators: | $\begin{bmatrix}147&4\\112&111\end{bmatrix}$, $\begin{bmatrix}203&156\\269&275\end{bmatrix}$, $\begin{bmatrix}247&36\\218&65\end{bmatrix}$, $\begin{bmatrix}303&172\\106&55\end{bmatrix}$ |
| Contains $-I$: | no $\quad$ (see 312.24.0.du.1 for the level structure with $-I$) |
| Cyclic 312-isogeny field degree: | $112$ |
| Cyclic 312-torsion field degree: | $5376$ |
| Full 312-torsion field degree: | $40255488$ |
Models
This modular curve is isomorphic to $\mathbb{P}^1$.
Rational points
This modular curve has real points and $\Q_p$ points for $p$ not dividing the level, but no known rational points.
Modular covers
This modular curve minimally covers the modular curves listed below.
| Covered curve | Level | Index | Degree | Genus | Rank |
|---|---|---|---|---|---|
| 24.24.0-24.ba.1.12 | $24$ | $2$ | $2$ | $0$ | $0$ |
| 312.24.0-24.ba.1.10 | $312$ | $2$ | $2$ | $0$ | $?$ |
| 104.24.0-104.y.1.3 | $104$ | $2$ | $2$ | $0$ | $?$ |
| 312.24.0-104.y.1.14 | $312$ | $2$ | $2$ | $0$ | $?$ |
| 312.24.0-312.s.1.3 | $312$ | $2$ | $2$ | $0$ | $?$ |
| 312.24.0-312.s.1.15 | $312$ | $2$ | $2$ | $0$ | $?$ |
This modular curve is minimally covered by the modular curves in the database listed below.
| Covering curve | Level | Index | Degree | Genus |
|---|---|---|---|---|
| 312.144.4-312.ni.1.14 | $312$ | $3$ | $3$ | $4$ |
| 312.192.3-312.qa.1.14 | $312$ | $4$ | $4$ | $3$ |