Properties

Label 252.216.7.en.1
Level $252$
Index $216$
Genus $7$
Cusps $24$
$\Q$-cusps $0$

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Invariants

Level: $252$ $\SL_2$-level: $36$ Newform level: $1$
Index: $216$ $\PSL_2$-index:$216$
Genus: $7 = 1 + \frac{ 216 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 24 }{2}$
Cusps: $24$ (none of which are rational) Cusp widths $3^{12}\cdot9^{4}\cdot12^{6}\cdot36^{2}$ Cusp orbits $2\cdot3^{2}\cdot4\cdot6^{2}$
Elliptic points: $0$ of order $2$ and $0$ of order $3$
Analytic rank: not computed
$\Q$-gonality: $3 \le \gamma \le 12$
$\overline{\Q}$-gonality: $3 \le \gamma \le 7$
Rational cusps: $0$
Rational CM points: none

Other labels

Cummins and Pauli (CP) label: 36N7

Level structure

$\GL_2(\Z/252\Z)$-generators: $\begin{bmatrix}53&18\\108&37\end{bmatrix}$, $\begin{bmatrix}61&144\\168&137\end{bmatrix}$, $\begin{bmatrix}65&159\\138&115\end{bmatrix}$, $\begin{bmatrix}127&108\\6&199\end{bmatrix}$, $\begin{bmatrix}227&57\\48&133\end{bmatrix}$
Contains $-I$: yes
Quadratic refinements: 252.432.7-252.en.1.1, 252.432.7-252.en.1.2, 252.432.7-252.en.1.3, 252.432.7-252.en.1.4, 252.432.7-252.en.1.5, 252.432.7-252.en.1.6, 252.432.7-252.en.1.7, 252.432.7-252.en.1.8
Cyclic 252-isogeny field degree: $48$
Cyclic 252-torsion field degree: $3456$
Full 252-torsion field degree: $3483648$

Rational points

This modular curve has no $\Q_p$ points for $p=5,41$, and therefore no rational points.

Modular covers

This modular curve minimally covers the modular curves listed below.

Covered curve Level Index Degree Genus Rank
18.108.2.c.1 $18$ $2$ $2$ $2$ $0$
84.72.1.r.1 $84$ $3$ $3$ $1$ $?$
252.108.3.e.1 $252$ $2$ $2$ $3$ $?$
252.108.4.f.1 $252$ $2$ $2$ $4$ $?$

This modular curve is minimally covered by the modular curves in the database listed below.

Covering curve Level Index Degree Genus
252.432.21.bp.1 $252$ $2$ $2$ $21$
252.432.21.ge.1 $252$ $2$ $2$ $21$
252.432.21.qi.1 $252$ $2$ $2$ $21$
252.432.21.qn.1 $252$ $2$ $2$ $21$
252.432.21.bem.1 $252$ $2$ $2$ $21$
252.432.21.bes.1 $252$ $2$ $2$ $21$
252.432.21.bfk.1 $252$ $2$ $2$ $21$
252.432.21.bfp.1 $252$ $2$ $2$ $21$