Invariants
| Level: | $208$ | $\SL_2$-level: | $16$ | ||||
| Index: | $48$ | $\PSL_2$-index: | $24$ | ||||
| Genus: | $0 = 1 + \frac{ 24 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 6 }{2}$ | ||||||
| Cusps: | $6$ (of which $2$ are rational) | Cusp widths | $1^{2}\cdot2\cdot4\cdot8^{2}$ | Cusp orbits | $1^{2}\cdot2^{2}$ | ||
| 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: | 8I0 |
Level structure
| $\GL_2(\Z/208\Z)$-generators: | $\begin{bmatrix}2&55\\181&196\end{bmatrix}$, $\begin{bmatrix}94&161\\33&142\end{bmatrix}$, $\begin{bmatrix}128&137\\199&82\end{bmatrix}$, $\begin{bmatrix}132&97\\147&82\end{bmatrix}$, $\begin{bmatrix}177&136\\6&187\end{bmatrix}$ |
| Contains $-I$: | no $\quad$ (see 104.24.0.ca.2 for the level structure with $-I$) |
| Cyclic 208-isogeny field degree: | $28$ |
| Cyclic 208-torsion field degree: | $1344$ |
| Full 208-torsion field degree: | $13418496$ |
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 |
|---|---|---|---|---|---|
| 16.24.0-8.n.1.8 | $16$ | $2$ | $2$ | $0$ | $0$ |
| 208.24.0-8.n.1.3 | $208$ | $2$ | $2$ | $0$ | $?$ |
This modular curve is minimally covered by the modular curves in the database listed below.
| Covering curve | Level | Index | Degree | Genus |
|---|---|---|---|---|
| 208.96.0-104.bb.1.2 | $208$ | $2$ | $2$ | $0$ |
| 208.96.0-104.be.2.3 | $208$ | $2$ | $2$ | $0$ |
| 208.96.0-104.bf.1.8 | $208$ | $2$ | $2$ | $0$ |
| 208.96.0-104.bg.1.3 | $208$ | $2$ | $2$ | $0$ |
| 208.96.0-104.bi.2.7 | $208$ | $2$ | $2$ | $0$ |
| 208.96.0-104.bl.1.6 | $208$ | $2$ | $2$ | $0$ |
| 208.96.0-104.bn.1.5 | $208$ | $2$ | $2$ | $0$ |
| 208.96.0-104.bo.2.6 | $208$ | $2$ | $2$ | $0$ |
| 208.96.0-208.bk.2.2 | $208$ | $2$ | $2$ | $0$ |
| 208.96.0-208.bq.2.5 | $208$ | $2$ | $2$ | $0$ |
| 208.96.0-208.bs.1.5 | $208$ | $2$ | $2$ | $0$ |
| 208.96.0-208.by.1.2 | $208$ | $2$ | $2$ | $0$ |
| 208.96.0-208.ca.2.2 | $208$ | $2$ | $2$ | $0$ |
| 208.96.0-208.cc.2.5 | $208$ | $2$ | $2$ | $0$ |
| 208.96.0-208.ce.1.5 | $208$ | $2$ | $2$ | $0$ |
| 208.96.0-208.cg.1.2 | $208$ | $2$ | $2$ | $0$ |
| 208.96.1-208.bg.1.2 | $208$ | $2$ | $2$ | $1$ |
| 208.96.1-208.bi.1.5 | $208$ | $2$ | $2$ | $1$ |
| 208.96.1-208.bk.2.5 | $208$ | $2$ | $2$ | $1$ |
| 208.96.1-208.bm.2.2 | $208$ | $2$ | $2$ | $1$ |
| 208.96.1-208.bq.1.2 | $208$ | $2$ | $2$ | $1$ |
| 208.96.1-208.bw.1.5 | $208$ | $2$ | $2$ | $1$ |
| 208.96.1-208.by.2.5 | $208$ | $2$ | $2$ | $1$ |
| 208.96.1-208.ce.2.2 | $208$ | $2$ | $2$ | $1$ |