Invariants
| Level: | $312$ | $\SL_2$-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
| $\GL_2(\Z/312\Z)$-generators: | $\begin{bmatrix}39&56\\284&43\end{bmatrix}$, $\begin{bmatrix}50&205\\209&258\end{bmatrix}$, $\begin{bmatrix}173&308\\172&137\end{bmatrix}$, $\begin{bmatrix}216&247\\161&46\end{bmatrix}$, $\begin{bmatrix}278&27\\267&242\end{bmatrix}$ |
| Contains $-I$: | no $\quad$ (see 312.12.0.z.1 for the level structure with $-I$) |
| Cyclic 312-isogeny field degree: | $112$ |
| Cyclic 312-torsion field degree: | $10752$ |
| Full 312-torsion field degree: | $80510976$ |
Models
This modular curve is isomorphic to $\mathbb{P}^1$.
Rational points
This modular curve has infinitely many rational points but none with conductor small enough to be contained within the database of elliptic curves over $\Q$.
Modular covers
This modular curve minimally covers the modular curves listed below.
| Covered curve | Level | Index | Degree | Genus | Rank |
|---|---|---|---|---|---|
| 8.12.0-4.c.1.6 | $8$ | $2$ | $2$ | $0$ | $0$ |
| 312.12.0-4.c.1.2 | $312$ | $2$ | $2$ | $0$ | $?$ |
This modular curve is minimally covered by the modular curves in the database listed below.
| Covering curve | Level | Index | Degree | Genus |
|---|---|---|---|---|
| 312.48.0-312.y.1.15 | $312$ | $2$ | $2$ | $0$ |
| 312.48.0-312.ba.1.12 | $312$ | $2$ | $2$ | $0$ |
| 312.48.0-312.bi.1.8 | $312$ | $2$ | $2$ | $0$ |
| 312.48.0-312.bj.1.14 | $312$ | $2$ | $2$ | $0$ |
| 312.48.0-312.by.1.8 | $312$ | $2$ | $2$ | $0$ |
| 312.48.0-312.cb.1.8 | $312$ | $2$ | $2$ | $0$ |
| 312.48.0-312.cd.1.12 | $312$ | $2$ | $2$ | $0$ |
| 312.48.0-312.ce.1.16 | $312$ | $2$ | $2$ | $0$ |
| 312.48.0-312.cr.1.12 | $312$ | $2$ | $2$ | $0$ |
| 312.48.0-312.cs.1.16 | $312$ | $2$ | $2$ | $0$ |
| 312.48.0-312.cu.1.8 | $312$ | $2$ | $2$ | $0$ |
| 312.48.0-312.cx.1.12 | $312$ | $2$ | $2$ | $0$ |
| 312.48.0-312.dh.1.22 | $312$ | $2$ | $2$ | $0$ |
| 312.48.0-312.di.1.16 | $312$ | $2$ | $2$ | $0$ |
| 312.48.0-312.dw.1.8 | $312$ | $2$ | $2$ | $0$ |
| 312.48.0-312.dz.1.12 | $312$ | $2$ | $2$ | $0$ |
| 312.72.2-312.cx.1.62 | $312$ | $3$ | $3$ | $2$ |
| 312.96.1-312.zx.1.64 | $312$ | $4$ | $4$ | $1$ |
| 312.336.11-312.cl.1.63 | $312$ | $14$ | $14$ | $11$ |