Invariants
Level: | $208$ | $\SL_2$-level: | $16$ | ||||
Index: | $96$ | $\PSL_2$-index: | $48$ | ||||
Genus: | $0 = 1 + \frac{ 48 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 10 }{2}$ | ||||||
Cusps: | $10$ (none of which are rational) | Cusp widths | $2^{4}\cdot4^{2}\cdot8^{4}$ | Cusp orbits | $2^{3}\cdot4$ | ||
Elliptic points: | $0$ of order $2$ and $0$ of order $3$ | ||||||
$\Q$-gonality: | $2$ | ||||||
$\overline{\Q}$-gonality: | $1$ | ||||||
Rational cusps: | $0$ | ||||||
Rational CM points: | none |
Other labels
Cummins and Pauli (CP) label: | 8O0 |
Level structure
$\GL_2(\Z/208\Z)$-generators: | $\begin{bmatrix}31&120\\205&23\end{bmatrix}$, $\begin{bmatrix}59&128\\184&181\end{bmatrix}$, $\begin{bmatrix}81&72\\8&83\end{bmatrix}$, $\begin{bmatrix}203&0\\103&69\end{bmatrix}$ |
Contains $-I$: | no $\quad$ (see 104.48.0.bo.2 for the level structure with $-I$) |
Cyclic 208-isogeny field degree: | $28$ |
Cyclic 208-torsion field degree: | $1344$ |
Full 208-torsion field degree: | $6709248$ |
Rational points
This modular curve has no real points, and therefore no rational points.
Modular covers
This modular curve minimally covers the modular curves listed below.
Covered curve | Level | Index | Degree | Genus | Rank |
---|---|---|---|---|---|
16.48.0-8.ba.1.7 | $16$ | $2$ | $2$ | $0$ | $0$ |
208.48.0-8.ba.1.6 | $208$ | $2$ | $2$ | $0$ | $?$ |
208.48.0-104.bp.1.2 | $208$ | $2$ | $2$ | $0$ | $?$ |
208.48.0-104.bp.1.7 | $208$ | $2$ | $2$ | $0$ | $?$ |
208.48.0-104.ca.2.2 | $208$ | $2$ | $2$ | $0$ | $?$ |
208.48.0-104.ca.2.12 | $208$ | $2$ | $2$ | $0$ | $?$ |
This modular curve is minimally covered by the modular curves in the database listed below.
Covering curve | Level | Index | Degree | Genus |
---|---|---|---|---|
208.192.1-208.cy.1.2 | $208$ | $2$ | $2$ | $1$ |
208.192.1-208.da.1.2 | $208$ | $2$ | $2$ | $1$ |
208.192.1-208.dg.2.2 | $208$ | $2$ | $2$ | $1$ |
208.192.1-208.di.1.5 | $208$ | $2$ | $2$ | $1$ |
208.192.1-208.eg.2.3 | $208$ | $2$ | $2$ | $1$ |
208.192.1-208.ei.2.3 | $208$ | $2$ | $2$ | $1$ |
208.192.1-208.eo.1.5 | $208$ | $2$ | $2$ | $1$ |
208.192.1-208.eq.2.2 | $208$ | $2$ | $2$ | $1$ |