Invariants
| Level: | $312$ | $\SL_2$-level: | $12$ | Newform level: | $1$ | ||
| Index: | $144$ | $\PSL_2$-index: | $144$ | ||||
| Genus: | $5 = 1 + \frac{ 144 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 16 }{2}$ | ||||||
| Cusps: | $16$ (none of which are rational) | Cusp widths | $6^{8}\cdot12^{8}$ | Cusp orbits | $2^{4}\cdot4^{2}$ | ||
| Elliptic points: | $0$ of order $2$ and $0$ of order $3$ | ||||||
| Analytic rank: | not computed | ||||||
| $\Q$-gonality: | $3 \le \gamma \le 8$ | ||||||
| $\overline{\Q}$-gonality: | $3 \le \gamma \le 5$ | ||||||
| Rational cusps: | $0$ | ||||||
| Rational CM points: | none |
Other labels
| Cummins and Pauli (CP) label: | 12B5 |
Level structure
| $\GL_2(\Z/312\Z)$-generators: | $\begin{bmatrix}5&248\\282&259\end{bmatrix}$, $\begin{bmatrix}55&124\\261&257\end{bmatrix}$, $\begin{bmatrix}245&198\\117&131\end{bmatrix}$, $\begin{bmatrix}269&204\\234&11\end{bmatrix}$, $\begin{bmatrix}305&158\\6&241\end{bmatrix}$ |
| Contains $-I$: | yes |
| Quadratic refinements: | 312.288.5-312.cal.1.1, 312.288.5-312.cal.1.2, 312.288.5-312.cal.1.3, 312.288.5-312.cal.1.4, 312.288.5-312.cal.1.5, 312.288.5-312.cal.1.6, 312.288.5-312.cal.1.7, 312.288.5-312.cal.1.8 |
| Cyclic 312-isogeny field degree: | $56$ |
| Cyclic 312-torsion field degree: | $5376$ |
| Full 312-torsion field degree: | $13418496$ |
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 |
|---|---|---|---|---|---|
| 24.72.3.ug.1 | $24$ | $2$ | $2$ | $3$ | $0$ |
| 156.72.1.r.1 | $156$ | $2$ | $2$ | $1$ | $?$ |
| 312.48.1.cab.1 | $312$ | $3$ | $3$ | $1$ | $?$ |
| 312.72.1.cp.1 | $312$ | $2$ | $2$ | $1$ | $?$ |
| 312.72.1.ij.1 | $312$ | $2$ | $2$ | $1$ | $?$ |
| 312.72.3.dhx.1 | $312$ | $2$ | $2$ | $3$ | $?$ |
| 312.72.3.dii.1 | $312$ | $2$ | $2$ | $3$ | $?$ |
| 312.72.3.eog.1 | $312$ | $2$ | $2$ | $3$ | $?$ |