Properties

Label 312.288.9-312.blf.1.27
Level $312$
Index $288$
Genus $9$
Cusps $8$
$\Q$-cusps $2$

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Invariants

Level: $312$ $\SL_2$-level: $24$ 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 $12^{4}\cdot24^{4}$ Cusp orbits $1^{2}\cdot2^{3}$
Elliptic points: $0$ of order $2$ and $0$ of order $3$
Analytic rank: not computed
$\Q$-gonality: $4 \le \gamma \le 9$
$\overline{\Q}$-gonality: $4 \le \gamma \le 9$
Rational cusps: $2$
Rational CM points: none

Other labels

Cummins and Pauli (CP) label: 24I9

Level structure

$\GL_2(\Z/312\Z)$-generators: $\begin{bmatrix}1&86\\40&1\end{bmatrix}$, $\begin{bmatrix}49&284\\248&257\end{bmatrix}$, $\begin{bmatrix}127&150\\180&209\end{bmatrix}$, $\begin{bmatrix}171&284\\260&249\end{bmatrix}$, $\begin{bmatrix}203&308\\308&229\end{bmatrix}$, $\begin{bmatrix}289&114\\240&173\end{bmatrix}$
Contains $-I$: no $\quad$ (see 312.144.9.blf.1 for the level structure with $-I$)
Cyclic 312-isogeny field degree: $56$
Cyclic 312-torsion field degree: $5376$
Full 312-torsion field degree: $6709248$

Rational points

This modular curve has 2 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
24.144.4-24.ch.1.38 $24$ $2$ $2$ $4$ $0$
156.144.4-156.p.1.11 $156$ $2$ $2$ $4$ $?$
312.144.4-156.p.1.33 $312$ $2$ $2$ $4$ $?$
312.144.4-24.ch.1.20 $312$ $2$ $2$ $4$ $?$
312.144.5-312.p.1.26 $312$ $2$ $2$ $5$ $?$
312.144.5-312.p.1.71 $312$ $2$ $2$ $5$ $?$