Invariants
| Level: | $280$ | $\SL_2$-level: | $20$ | Newform level: | $1$ | ||
| Index: | $240$ | $\PSL_2$-index: | $120$ | ||||
| Genus: | $7 = 1 + \frac{ 120 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 8 }{2}$ | ||||||
| Cusps: | $8$ (none of which are rational) | Cusp widths | $10^{4}\cdot20^{4}$ | Cusp orbits | $4^{2}$ | ||
| Elliptic points: | $0$ of order $2$ and $0$ of order $3$ | ||||||
| Analytic rank: | not computed | ||||||
| $\Q$-gonality: | $3 \le \gamma \le 12$ | ||||||
| $\overline{\Q}$-gonality: | $3 \le \gamma \le 7$ | ||||||
| Rational cusps: | $0$ | ||||||
| Rational CM points: | none |
Other labels
| Cummins and Pauli (CP) label: | 20B7 |
Level structure
| $\GL_2(\Z/280\Z)$-generators: | $\begin{bmatrix}47&94\\174&175\end{bmatrix}$, $\begin{bmatrix}47&151\\98&83\end{bmatrix}$, $\begin{bmatrix}81&4\\224&249\end{bmatrix}$, $\begin{bmatrix}155&253\\122&175\end{bmatrix}$, $\begin{bmatrix}205&142\\98&165\end{bmatrix}$ |
| Contains $-I$: | no $\quad$ (see 140.120.7.k.1 for the level structure with $-I$) |
| Cyclic 280-isogeny field degree: | $192$ |
| Cyclic 280-torsion field degree: | $18432$ |
| Full 280-torsion field degree: | $6193152$ |
Rational points
This modular curve has real points and $\Q_p$ points for $p$ not dividing the level, but no known rational points.
Modular covers
This modular curve minimally covers the modular curves listed below.
| Covered curve | Level | Index | Degree | Genus | Rank |
|---|---|---|---|---|---|
| 40.120.3-20.a.1.6 | $40$ | $2$ | $2$ | $3$ | $0$ |
| 280.120.3-20.a.1.2 | $280$ | $2$ | $2$ | $3$ | $?$ |
This modular curve is minimally covered by the modular curves in the database listed below.
| Covering curve | Level | Index | Degree | Genus |
|---|---|---|---|---|
| 280.480.13-140.bz.1.2 | $280$ | $2$ | $2$ | $13$ |
| 280.480.13-140.cb.1.2 | $280$ | $2$ | $2$ | $13$ |
| 280.480.13-140.co.1.1 | $280$ | $2$ | $2$ | $13$ |
| 280.480.13-140.cq.1.4 | $280$ | $2$ | $2$ | $13$ |
| 280.480.13-140.cx.1.4 | $280$ | $2$ | $2$ | $13$ |
| 280.480.13-140.cz.1.1 | $280$ | $2$ | $2$ | $13$ |
| 280.480.13-140.dd.1.2 | $280$ | $2$ | $2$ | $13$ |
| 280.480.13-140.de.1.2 | $280$ | $2$ | $2$ | $13$ |
| 280.480.13-280.nu.1.7 | $280$ | $2$ | $2$ | $13$ |
| 280.480.13-280.oi.1.1 | $280$ | $2$ | $2$ | $13$ |
| 280.480.13-280.rv.1.3 | $280$ | $2$ | $2$ | $13$ |
| 280.480.13-280.sj.1.5 | $280$ | $2$ | $2$ | $13$ |
| 280.480.13-280.ug.1.5 | $280$ | $2$ | $2$ | $13$ |
| 280.480.13-280.uu.1.3 | $280$ | $2$ | $2$ | $13$ |
| 280.480.13-280.vv.1.1 | $280$ | $2$ | $2$ | $13$ |
| 280.480.13-280.wd.1.7 | $280$ | $2$ | $2$ | $13$ |