Properties

Label 240.288.9-240.h.1.21
Level $240$
Index $288$
Genus $9$
Cusps $8$
$\Q$-cusps $2$

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Invariants

Level: $240$ $\SL_2$-level: $48$ Newform level: $1$
Index: $288$ $\PSL_2$-index:$144$
Genus: $9 = 1 + \frac{ 144 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 8 }{2}$
Cusps: $8$ (of which $2$ are rational) Cusp widths $6^{4}\cdot12^{2}\cdot48^{2}$ Cusp orbits $1^{2}\cdot2^{3}$
Elliptic points: $0$ of order $2$ and $0$ of order $3$
Analytic rank: not computed
$\Q$-gonality: $3 \le \gamma \le 9$
$\overline{\Q}$-gonality: $3 \le \gamma \le 9$
Rational cusps: $2$
Rational CM points: none

Other labels

Cummins and Pauli (CP) label: 48A9

Level structure

$\GL_2(\Z/240\Z)$-generators: $\begin{bmatrix}59&218\\80&13\end{bmatrix}$, $\begin{bmatrix}83&210\\0&221\end{bmatrix}$, $\begin{bmatrix}91&128\\168&125\end{bmatrix}$, $\begin{bmatrix}151&158\\96&221\end{bmatrix}$, $\begin{bmatrix}187&230\\104&77\end{bmatrix}$, $\begin{bmatrix}195&196\\112&65\end{bmatrix}$, $\begin{bmatrix}221&140\\32&61\end{bmatrix}$
Contains $-I$: no $\quad$ (see 240.144.9.h.1 for the level structure with $-I$)
Cyclic 240-isogeny field degree: $48$
Cyclic 240-torsion field degree: $3072$
Full 240-torsion field degree: $1966080$

Rational points

This modular curve has 2 rational cusps but no known non-cuspidal rational points.

Modular covers

The following modular covers realize this modular curve as a fiber product over $X(1)$.

Factor curve Level Index Degree Genus Rank
$X_{\mathrm{ns}}^+(3)$ $3$ $96$ $48$ $0$ $0$
80.96.1-80.b.2.1 $80$ $3$ $3$ $1$ $?$

This modular curve minimally covers the modular curves listed below.

Covered curve Level Index Degree Genus Rank
24.144.4-24.ch.1.38 $24$ $2$ $2$ $4$ $0$
80.96.1-80.b.2.1 $80$ $3$ $3$ $1$ $?$
240.144.4-24.ch.1.8 $240$ $2$ $2$ $4$ $?$
240.144.4-240.cq.1.47 $240$ $2$ $2$ $4$ $?$
240.144.4-240.cq.1.82 $240$ $2$ $2$ $4$ $?$
240.144.5-240.b.1.47 $240$ $2$ $2$ $5$ $?$
240.144.5-240.b.1.82 $240$ $2$ $2$ $5$ $?$