Invariants
Level: | $280$ | $\SL_2$-level: | $20$ | Newform level: | $1$ | ||
Index: | $144$ | $\PSL_2$-index: | $72$ | ||||
Genus: | $3 = 1 + \frac{ 72 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 8 }{2}$ | ||||||
Cusps: | $8$ (of which $4$ are rational) | Cusp widths | $2^{2}\cdot4^{2}\cdot10^{2}\cdot20^{2}$ | Cusp orbits | $1^{4}\cdot2^{2}$ | ||
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: | 20I3 |
Level structure
$\GL_2(\Z/280\Z)$-generators: | $\begin{bmatrix}77&120\\20&63\end{bmatrix}$, $\begin{bmatrix}99&220\\100&269\end{bmatrix}$, $\begin{bmatrix}123&160\\172&93\end{bmatrix}$, $\begin{bmatrix}181&70\\48&163\end{bmatrix}$, $\begin{bmatrix}257&70\\254&269\end{bmatrix}$, $\begin{bmatrix}257&170\\104&153\end{bmatrix}$ |
Contains $-I$: | no $\quad$ (see 280.72.3.f.2 for the level structure with $-I$) |
Cyclic 280-isogeny field degree: | $32$ |
Cyclic 280-torsion field degree: | $3072$ |
Full 280-torsion field degree: | $10321920$ |
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 |
---|---|---|---|---|---|
40.72.1-10.a.1.1 | $40$ | $2$ | $2$ | $1$ | $0$ |
140.72.1-10.a.1.5 | $140$ | $2$ | $2$ | $1$ | $?$ |
This modular curve is minimally covered by the modular curves in the database listed below.