Invariants
| Level: | $228$ | $\SL_2$-level: | $12$ | Newform level: | $1$ | ||
| Index: | $48$ | $\PSL_2$-index: | $24$ | ||||
| Genus: | $1 = 1 + \frac{ 24 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 4 }{2}$ | ||||||
| Cusps: | $4$ (all of which are rational) | Cusp widths | $2\cdot4\cdot6\cdot12$ | Cusp orbits | $1^{4}$ | ||
| Elliptic points: | $0$ of order $2$ and $0$ of order $3$ | ||||||
| Analytic rank: | not computed | ||||||
| $\Q$-gonality: | $2$ | ||||||
| $\overline{\Q}$-gonality: | $2$ | ||||||
| Rational cusps: | $4$ | ||||||
| Rational CM points: | none |
Other labels
| Cummins and Pauli (CP) label: | 12F1 |
Level structure
| $\GL_2(\Z/228\Z)$-generators: | $\begin{bmatrix}74&61\\173&222\end{bmatrix}$, $\begin{bmatrix}128&43\\177&166\end{bmatrix}$, $\begin{bmatrix}131&90\\146&115\end{bmatrix}$, $\begin{bmatrix}172&149\\121&162\end{bmatrix}$ |
| Contains $-I$: | no $\quad$ (see 228.24.1.p.1 for the level structure with $-I$) |
| Cyclic 228-isogeny field degree: | $40$ |
| Cyclic 228-torsion field degree: | $2880$ |
| Full 228-torsion field degree: | $11819520$ |
Jacobian
| Conductor: | $?$ |
| Simple: | yes |
| Squarefree: | yes |
| Decomposition: | $1$ |
| Newforms: | not computed |
Rational points
This modular curve is an elliptic curve, but the rank has not been computed
Modular covers
This modular curve minimally covers the modular curves listed below.
| Covered curve | Level | Index | Degree | Genus | Rank | Kernel decomposition |
|---|---|---|---|---|---|---|
| 12.24.0-6.a.1.6 | $12$ | $2$ | $2$ | $0$ | $0$ | full Jacobian |
| 114.24.0-6.a.1.4 | $114$ | $2$ | $2$ | $0$ | $?$ | full Jacobian |
This modular curve is minimally covered by the modular curves in the database listed below.
| Covering curve | Level | Index | Degree | Genus | Rank | Kernel decomposition |
|---|---|---|---|---|---|---|
| 228.96.1-228.a.1.17 | $228$ | $2$ | $2$ | $1$ | $?$ | dimension zero |
| 228.96.1-228.h.1.4 | $228$ | $2$ | $2$ | $1$ | $?$ | dimension zero |
| 228.96.1-228.i.1.1 | $228$ | $2$ | $2$ | $1$ | $?$ | dimension zero |
| 228.96.1-228.l.1.7 | $228$ | $2$ | $2$ | $1$ | $?$ | dimension zero |
| 228.96.1-228.z.1.5 | $228$ | $2$ | $2$ | $1$ | $?$ | dimension zero |
| 228.96.1-228.bb.1.5 | $228$ | $2$ | $2$ | $1$ | $?$ | dimension zero |
| 228.96.1-228.bd.1.5 | $228$ | $2$ | $2$ | $1$ | $?$ | dimension zero |
| 228.96.1-228.bf.1.5 | $228$ | $2$ | $2$ | $1$ | $?$ | dimension zero |
| 228.144.3-228.mb.1.7 | $228$ | $3$ | $3$ | $3$ | $?$ | not computed |