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 | $2^{8}\cdot16^{2}$ | 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: | 16G0 |
Level structure
$\GL_2(\Z/240\Z)$-generators: | $\begin{bmatrix}57&112\\191&87\end{bmatrix}$, $\begin{bmatrix}95&152\\148&95\end{bmatrix}$, $\begin{bmatrix}157&40\\0&97\end{bmatrix}$, $\begin{bmatrix}177&44\\92&151\end{bmatrix}$, $\begin{bmatrix}209&116\\77&85\end{bmatrix}$ |
Contains $-I$: | no $\quad$ (see 240.48.0.bi.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 | $48$ | $2$ | $2$ | $0$ | $0$ |
80.48.0-40.bj.1.7 | $80$ | $2$ | $2$ | $0$ | $?$ |
120.48.0-40.bj.1.4 | $120$ | $2$ | $2$ | $0$ | $?$ |
240.48.0-48.e.1.24 | $240$ | $2$ | $2$ | $0$ | $?$ |
240.48.0-240.n.2.18 | $240$ | $2$ | $2$ | $0$ | $?$ |
240.48.0-240.n.2.43 | $240$ | $2$ | $2$ | $0$ | $?$ |
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.hp.2.1 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.hq.1.1 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.hx.1.1 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.hy.2.1 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.nx.2.1 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.ny.1.1 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.on.1.1 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.oo.2.1 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.wn.1.1 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.wo.2.1 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.xd.2.1 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.xe.1.1 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.bbj.1.1 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.bbk.2.1 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.bbr.2.1 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.bbs.1.1 | $240$ | $2$ | $2$ | $1$ |
240.288.8-240.er.1.17 | $240$ | $3$ | $3$ | $8$ |
240.384.7-240.sc.1.2 | $240$ | $4$ | $4$ | $7$ |
240.480.16-240.ck.2.25 | $240$ | $5$ | $5$ | $16$ |