Properties

Label 204.24.0.g.1
Level $204$
Index $24$
Genus $0$
Cusps $6$
$\Q$-cusps $0$

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Invariants

Level: $204$ $\SL_2$-level: $4$
Index: $24$ $\PSL_2$-index:$24$
Genus: $0 = 1 + \frac{ 24 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 6 }{2}$
Cusps: $6$ (none of which are rational) Cusp widths $4^{6}$ Cusp orbits $2^{3}$
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: 4G0

Level structure

$\GL_2(\Z/204\Z)$-generators: $\begin{bmatrix}27&74\\196&51\end{bmatrix}$, $\begin{bmatrix}171&124\\8&81\end{bmatrix}$, $\begin{bmatrix}185&138\\16&149\end{bmatrix}$, $\begin{bmatrix}189&16\\202&25\end{bmatrix}$
Contains $-I$: yes
Quadratic refinements: 204.48.0-204.g.1.1, 204.48.0-204.g.1.2, 204.48.0-204.g.1.3, 204.48.0-204.g.1.4, 204.48.0-204.g.1.5, 204.48.0-204.g.1.6, 204.48.0-204.g.1.7, 204.48.0-204.g.1.8
Cyclic 204-isogeny field degree: $144$
Cyclic 204-torsion field degree: $9216$
Full 204-torsion field degree: $15040512$

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
12.12.0.b.1 $12$ $2$ $2$ $0$ $0$
68.12.0.b.1 $68$ $2$ $2$ $0$ $0$
204.12.0.a.1 $204$ $2$ $2$ $0$ $?$

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

Covering curve Level Index Degree Genus
204.72.4.j.1 $204$ $3$ $3$ $4$
204.96.3.j.1 $204$ $4$ $4$ $3$