Invariants
| Level: | $156$ | $\SL_2$-level: | $12$ | Newform level: | $1$ | ||
| Index: | $144$ | $\PSL_2$-index: | $72$ | ||||
| Genus: | $3 = 1 + \frac{ 72 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 8 }{2}$ | ||||||
| Cusps: | $8$ (none of which are rational) | Cusp widths | $6^{4}\cdot12^{4}$ | Cusp orbits | $2^{2}\cdot4$ | ||
| Elliptic points: | $0$ of order $2$ and $0$ of order $3$ | ||||||
| Analytic rank: | not computed | ||||||
| $\Q$-gonality: | $2 \le \gamma \le 4$ | ||||||
| $\overline{\Q}$-gonality: | $2 \le \gamma \le 3$ | ||||||
| Rational cusps: | $0$ | ||||||
| Rational CM points: | none |
Other labels
| Cummins and Pauli (CP) label: | 12G3 |
Level structure
| $\GL_2(\Z/156\Z)$-generators: | $\begin{bmatrix}63&116\\16&9\end{bmatrix}$, $\begin{bmatrix}77&126\\70&61\end{bmatrix}$, $\begin{bmatrix}87&20\\74&133\end{bmatrix}$, $\begin{bmatrix}139&44\\32&65\end{bmatrix}$ |
| Contains $-I$: | no $\quad$ (see 156.72.3.o.1 for the level structure with $-I$) |
| Cyclic 156-isogeny field degree: | $112$ |
| Cyclic 156-torsion field degree: | $2688$ |
| Full 156-torsion field degree: | $838656$ |
Rational points
This modular curve has no real points and no $\Q_p$ points for $p=19$, and therefore no rational points.
Modular covers
This modular curve minimally covers the modular curves listed below.
| Covered curve | Level | Index | Degree | Genus | Rank |
|---|---|---|---|---|---|
| 12.72.2-12.d.1.3 | $12$ | $2$ | $2$ | $2$ | $0$ |
| 156.72.1-78.a.1.1 | $156$ | $2$ | $2$ | $1$ | $?$ |
| 156.72.1-78.a.1.4 | $156$ | $2$ | $2$ | $1$ | $?$ |
| 156.72.2-12.d.1.4 | $156$ | $2$ | $2$ | $2$ | $?$ |
| 156.72.2-156.e.1.5 | $156$ | $2$ | $2$ | $2$ | $?$ |
| 156.72.2-156.e.1.9 | $156$ | $2$ | $2$ | $2$ | $?$ |
This modular curve is minimally covered by the modular curves in the database listed below.
| Covering curve | Level | Index | Degree | Genus |
|---|---|---|---|---|
| 156.288.7-156.k.1.1 | $156$ | $2$ | $2$ | $7$ |
| 156.288.7-156.k.1.4 | $156$ | $2$ | $2$ | $7$ |
| 156.288.7-156.l.1.1 | $156$ | $2$ | $2$ | $7$ |
| 156.288.7-156.l.1.8 | $156$ | $2$ | $2$ | $7$ |
| 156.288.7-156.de.1.2 | $156$ | $2$ | $2$ | $7$ |
| 156.288.7-156.de.1.7 | $156$ | $2$ | $2$ | $7$ |
| 156.288.7-156.df.1.3 | $156$ | $2$ | $2$ | $7$ |
| 156.288.7-156.df.1.6 | $156$ | $2$ | $2$ | $7$ |
| 312.288.7-312.bs.1.2 | $312$ | $2$ | $2$ | $7$ |
| 312.288.7-312.bs.1.15 | $312$ | $2$ | $2$ | $7$ |
| 312.288.7-312.by.1.2 | $312$ | $2$ | $2$ | $7$ |
| 312.288.7-312.by.1.15 | $312$ | $2$ | $2$ | $7$ |
| 312.288.7-312.sn.1.2 | $312$ | $2$ | $2$ | $7$ |
| 312.288.7-312.sn.1.15 | $312$ | $2$ | $2$ | $7$ |
| 312.288.7-312.su.1.2 | $312$ | $2$ | $2$ | $7$ |
| 312.288.7-312.su.1.15 | $312$ | $2$ | $2$ | $7$ |