Invariants
| Level: | $208$ | $\SL_2$-level: | $16$ | Newform level: | $1$ | ||
| Index: | $192$ | $\PSL_2$-index: | $96$ | ||||
| Genus: | $3 = 1 + \frac{ 96 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 12 }{2}$ | ||||||
| Cusps: | $12$ (of which $4$ are rational) | Cusp widths | $4^{8}\cdot16^{4}$ | Cusp orbits | $1^{4}\cdot2^{2}\cdot4$ | ||
| Elliptic points: | $0$ of order $2$ and $0$ of order $3$ | ||||||
| Analytic rank: | not computed | ||||||
| $\Q$-gonality: | $2 \le \gamma \le 3$ | ||||||
| $\overline{\Q}$-gonality: | $2 \le \gamma \le 3$ | ||||||
| Rational cusps: | $4$ | ||||||
| Rational CM points: | none |
Other labels
| Cummins and Pauli (CP) label: | 16I3 |
Level structure
| $\GL_2(\Z/208\Z)$-generators: | $\begin{bmatrix}17&48\\13&47\end{bmatrix}$, $\begin{bmatrix}37&168\\25&107\end{bmatrix}$, $\begin{bmatrix}173&88\\115&11\end{bmatrix}$, $\begin{bmatrix}181&8\\167&191\end{bmatrix}$ |
| Contains $-I$: | no $\quad$ (see 208.96.3.gl.1 for the level structure with $-I$) |
| Cyclic 208-isogeny field degree: | $28$ |
| Cyclic 208-torsion field degree: | $672$ |
| Full 208-torsion field degree: | $3354624$ |
Rational points
This modular curve has 4 rational cusps but no known non-cuspidal rational points.
Modular covers
This modular curve minimally covers the modular curves listed below.
| Covered curve | Level | Index | Degree | Genus | Rank |
|---|---|---|---|---|---|
| 16.96.0-16.j.1.2 | $16$ | $2$ | $2$ | $0$ | $0$ |
| 208.96.0-16.j.1.6 | $208$ | $2$ | $2$ | $0$ | $?$ |
| 104.96.1-104.cy.1.2 | $104$ | $2$ | $2$ | $1$ | $?$ |
| 208.96.1-104.cy.1.5 | $208$ | $2$ | $2$ | $1$ | $?$ |
| 208.96.2-208.j.1.1 | $208$ | $2$ | $2$ | $2$ | $?$ |
| 208.96.2-208.j.1.4 | $208$ | $2$ | $2$ | $2$ | $?$ |
This modular curve is minimally covered by the modular curves in the database listed below.
| Covering curve | Level | Index | Degree | Genus |
|---|---|---|---|---|
| 208.384.5-208.lo.1.2 | $208$ | $2$ | $2$ | $5$ |
| 208.384.5-208.lo.2.3 | $208$ | $2$ | $2$ | $5$ |
| 208.384.5-208.lq.1.1 | $208$ | $2$ | $2$ | $5$ |
| 208.384.5-208.lq.2.1 | $208$ | $2$ | $2$ | $5$ |