Invariants
Level: | $240$ | $\SL_2$-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 | $1^{4}\cdot2^{2}\cdot4^{2}\cdot16^{2}$ | Cusp orbits | $2^{3}\cdot4$ | ||
Elliptic points: | $0$ of order $2$ and $0$ of order $3$ | ||||||
$\Q$-gonality: | $1 \le \gamma \le 2$ | ||||||
$\overline{\Q}$-gonality: | $1$ | ||||||
Rational cusps: | $0$ | ||||||
Rational CM points: | none |
Other labels
Cummins and Pauli (CP) label: | 16H0 |
Level structure
$\GL_2(\Z/240\Z)$-generators: | $\begin{bmatrix}19&18\\42&155\end{bmatrix}$, $\begin{bmatrix}93&46\\80&83\end{bmatrix}$, $\begin{bmatrix}123&226\\88&5\end{bmatrix}$, $\begin{bmatrix}142&73\\69&74\end{bmatrix}$, $\begin{bmatrix}184&65\\23&194\end{bmatrix}$ |
Contains $-I$: | no $\quad$ (see 240.48.0.do.1 for the level structure with $-I$) |
Cyclic 240-isogeny field degree: | $48$ |
Cyclic 240-torsion field degree: | $1536$ |
Full 240-torsion field degree: | $5898240$ |
Models
This modular curve is isomorphic to $\mathbb{P}^1$.
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 |
---|---|---|---|---|---|
48.48.0-48.e.1.1 | $48$ | $2$ | $2$ | $0$ | $0$ |
80.48.0-80.o.1.18 | $80$ | $2$ | $2$ | $0$ | $?$ |
120.48.0-120.ei.2.11 | $120$ | $2$ | $2$ | $0$ | $?$ |
240.48.0-48.e.1.4 | $240$ | $2$ | $2$ | $0$ | $?$ |
240.48.0-80.o.1.9 | $240$ | $2$ | $2$ | $0$ | $?$ |
240.48.0-120.ei.2.2 | $240$ | $2$ | $2$ | $0$ | $?$ |
This modular curve is minimally covered by the modular curves in the database listed below.
Covering curve | Level | Index | Degree | Genus |
---|---|---|---|---|
240.192.1-240.bt.2.7 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.ci.1.1 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.ds.1.5 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.ff.1.3 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.hu.1.1 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.hx.1.1 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.ij.2.5 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.io.2.5 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.qn.1.1 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.qy.1.1 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.ro.2.3 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.sj.1.2 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.sw.1.1 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.tl.1.1 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.ub.1.3 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.us.2.5 | $240$ | $2$ | $2$ | $1$ |
240.288.8-240.vc.2.3 | $240$ | $3$ | $3$ | $8$ |
240.384.7-240.zx.1.5 | $240$ | $4$ | $4$ | $7$ |
240.480.16-240.eq.2.3 | $240$ | $5$ | $5$ | $16$ |