Invariants
| Level: | $260$ | $\SL_2$-level: | $20$ | Newform level: | $1$ | ||
| Index: | $288$ | $\PSL_2$-index: | $144$ | ||||
| Genus: | $5 = 1 + \frac{ 144 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 16 }{2}$ | ||||||
| Cusps: | $16$ (of which $4$ are rational) | Cusp widths | $2^{4}\cdot4^{4}\cdot10^{4}\cdot20^{4}$ | Cusp orbits | $1^{4}\cdot2^{4}\cdot4$ | ||
| Elliptic points: | $0$ of order $2$ and $0$ of order $3$ | ||||||
| Analytic rank: | not computed | ||||||
| $\Q$-gonality: | $2 \le \gamma \le 5$ | ||||||
| $\overline{\Q}$-gonality: | $2 \le \gamma \le 5$ | ||||||
| Rational cusps: | $4$ | ||||||
| Rational CM points: | none |
Other labels
| Cummins and Pauli (CP) label: | 20I5 |
Level structure
| $\GL_2(\Z/260\Z)$-generators: | $\begin{bmatrix}93&240\\107&179\end{bmatrix}$, $\begin{bmatrix}133&240\\252&41\end{bmatrix}$, $\begin{bmatrix}189&220\\28&151\end{bmatrix}$, $\begin{bmatrix}239&160\\152&151\end{bmatrix}$ |
| Contains $-I$: | no $\quad$ (see 260.144.5.cr.1 for the level structure with $-I$) |
| Cyclic 260-isogeny field degree: | $14$ |
| Cyclic 260-torsion field degree: | $672$ |
| Full 260-torsion field degree: | $4193280$ |
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 |
|---|---|---|---|---|---|
| 20.144.1-20.f.2.11 | $20$ | $2$ | $2$ | $1$ | $0$ |
| 260.144.1-20.f.2.1 | $260$ | $2$ | $2$ | $1$ | $?$ |
| 260.144.1-260.x.1.1 | $260$ | $2$ | $2$ | $1$ | $?$ |
| 260.144.1-260.x.1.11 | $260$ | $2$ | $2$ | $1$ | $?$ |
| 260.144.3-260.cn.2.8 | $260$ | $2$ | $2$ | $3$ | $?$ |
| 260.144.3-260.cn.2.13 | $260$ | $2$ | $2$ | $3$ | $?$ |