Properties

Label 120.12.0-4.b.1.1
Level $120$
Index $12$
Genus $0$
Cusps $3$
$\Q$-cusps $1$

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Invariants

Level: $120$ $\SL_2$-level: $8$
Index: $12$ $\PSL_2$-index:$6$
Genus: $0 = 1 + \frac{ 6 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 3 }{2}$
Cusps: $3$ (of which $1$ is rational) Cusp widths $1^{2}\cdot4$ Cusp orbits $1\cdot2$
Elliptic points: $0$ of order $2$ and $0$ of order $3$
$\Q$-gonality: $1$
$\overline{\Q}$-gonality: $1$
Rational cusps: $1$
Rational CM points: none

Other labels

Cummins and Pauli (CP) label: 4B0

Level structure

$\GL_2(\Z/120\Z)$-generators: $\begin{bmatrix}16&65\\93&82\end{bmatrix}$, $\begin{bmatrix}16&73\\55&86\end{bmatrix}$, $\begin{bmatrix}57&74\\62&21\end{bmatrix}$, $\begin{bmatrix}93&68\\40&101\end{bmatrix}$, $\begin{bmatrix}94&15\\111&16\end{bmatrix}$
Contains $-I$: no $\quad$ (see 4.6.0.b.1 for the level structure with $-I$)
Cyclic 120-isogeny field degree: $96$
Cyclic 120-torsion field degree: $3072$
Full 120-torsion field degree: $2949120$

Models

This modular curve is isomorphic to $\mathbb{P}^1$.

Rational points

This modular curve has infinitely many rational points, including 11629 stored non-cuspidal points.

Maps to other modular curves

$j$-invariant map of degree 6 to the modular curve $X(1)$ :

$\displaystyle j$ $=$ $\displaystyle \frac{x^{6}(x^{2}+48y^{2})^{3}}{y^{4}x^{6}(x^{2}+64y^{2})}$

Modular covers

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

Covering curve Level Index Degree Genus
120.24.0-4.a.1.3 $120$ $2$ $2$ $0$
120.24.0-4.c.1.2 $120$ $2$ $2$ $0$
120.24.0-8.c.1.2 $120$ $2$ $2$ $0$
120.24.0-12.e.1.1 $120$ $2$ $2$ $0$
120.24.0-20.e.1.2 $120$ $2$ $2$ $0$
120.24.0-60.e.1.8 $120$ $2$ $2$ $0$
120.24.0-12.f.1.2 $120$ $2$ $2$ $0$
120.24.0-20.f.1.1 $120$ $2$ $2$ $0$
120.24.0-60.f.1.2 $120$ $2$ $2$ $0$
120.24.0-8.h.1.1 $120$ $2$ $2$ $0$
120.24.0-24.m.1.1 $120$ $2$ $2$ $0$
120.24.0-40.m.1.1 $120$ $2$ $2$ $0$
120.24.0-120.m.1.1 $120$ $2$ $2$ $0$
120.24.0-24.p.1.1 $120$ $2$ $2$ $0$
120.24.0-40.p.1.1 $120$ $2$ $2$ $0$
120.24.0-120.p.1.1 $120$ $2$ $2$ $0$
120.36.1-12.b.1.5 $120$ $3$ $3$ $1$
120.48.0-12.f.1.13 $120$ $4$ $4$ $0$
120.60.2-20.b.1.5 $120$ $5$ $5$ $2$
120.72.1-20.b.1.15 $120$ $6$ $6$ $1$
120.120.3-20.b.1.7 $120$ $10$ $10$ $3$