Properties

Label 120.240.7-40.e.1.9
Level $120$
Index $240$
Genus $7$
Cusps $8$
$\Q$-cusps $0$

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Invariants

Level: $120$ $\SL_2$-level: $20$ Newform level: $1600$
Index: $240$ $\PSL_2$-index:$120$
Genus: $7 = 1 + \frac{ 120 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 8 }{2}$
Cusps: $8$ (none of which are rational) Cusp widths $10^{4}\cdot20^{4}$ Cusp orbits $2^{2}\cdot4$
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: 20B7

Level structure

$\GL_2(\Z/120\Z)$-generators: $\begin{bmatrix}1&80\\0&91\end{bmatrix}$, $\begin{bmatrix}15&74\\94&13\end{bmatrix}$, $\begin{bmatrix}49&96\\2&101\end{bmatrix}$, $\begin{bmatrix}53&46\\80&27\end{bmatrix}$, $\begin{bmatrix}91&14\\74&29\end{bmatrix}$, $\begin{bmatrix}99&46\\76&111\end{bmatrix}$
Contains $-I$: no $\quad$ (see 40.120.7.e.1 for the level structure with $-I$)
Cyclic 120-isogeny field degree: $96$
Cyclic 120-torsion field degree: $3072$
Full 120-torsion field degree: $147456$

Models

Canonical model in $\mathbb{P}^{ 6 }$ defined by 10 equations

$ 0 $ $=$ $ x w + x t - x v - z u $
$=$ $x w - x t + x u - y u - z u$
$=$ $y w + y t - y v + 2 z t - z u - z v$
$=$ $2 x^{2} - 6 x y + 2 x z - t u$
$=$$\cdots$
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Singular plane model Singular plane model

$ 0 $ $=$ $ 2500 x^{12} + 3500 x^{10} y^{2} + 3500 x^{10} y z - 1750 x^{10} z^{2} + 1225 x^{8} y^{4} + \cdots + 16 y^{2} z^{10} $
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Rational points

This modular curve has real points and $\Q_p$ points for $p$ not dividing the level, but no known rational points.

Maps to other modular curves

Map of degree 2 from the canonical model of this modular curve to the canonical model of the modular curve 10.60.3.a.1 :

$\displaystyle X$ $=$ $\displaystyle 2x-y-3z$
$\displaystyle Y$ $=$ $\displaystyle -4x+2y+z$
$\displaystyle Z$ $=$ $\displaystyle -x-2y-z$

Equation of the image curve:

$0$ $=$ $ 2X^{4}-3X^{3}Y-5X^{2}Y^{2}-4XY^{3}-2Y^{4}+3X^{3}Z-18X^{2}YZ-17XY^{2}Z+4Y^{3}Z-5X^{2}Z^{2}+17XYZ^{2}-6Y^{2}Z^{2}+4XZ^{3}+4YZ^{3}-2Z^{4} $

Map of degree 1 from the canonical model of this modular curve to the plane model of the modular curve 40.120.7.e.1 :

$\displaystyle X$ $=$ $\displaystyle x$
$\displaystyle Y$ $=$ $\displaystyle \frac{1}{2}v$
$\displaystyle Z$ $=$ $\displaystyle \frac{1}{2}u$

Equation of the image curve:

$0$ $=$ $ 2500X^{12}+3500X^{10}Y^{2}+1225X^{8}Y^{4}+3500X^{10}YZ+2450X^{8}Y^{3}Z-1750X^{10}Z^{2}-4825X^{8}Y^{2}Z^{2}-5200X^{6}Y^{4}Z^{2}-6050X^{8}YZ^{3}-10400X^{6}Y^{3}Z^{3}-900X^{8}Z^{4}-4500X^{6}Y^{2}Z^{4}+2200X^{4}Y^{4}Z^{4}+700X^{6}YZ^{5}+4400X^{4}Y^{3}Z^{5}+600X^{6}Z^{6}+2640X^{4}Y^{2}Z^{6}-320X^{2}Y^{4}Z^{6}+440X^{4}YZ^{7}-640X^{2}Y^{3}Z^{7}-80X^{4}Z^{8}-400X^{2}Y^{2}Z^{8}+16Y^{4}Z^{8}-80X^{2}YZ^{9}+32Y^{3}Z^{9}+16Y^{2}Z^{10} $

Modular covers

This modular curve minimally covers the modular curves listed below.

Covered curve Level Index Degree Genus Rank
60.120.3-10.a.1.2 $60$ $2$ $2$ $3$ $0$
120.120.3-10.a.1.2 $120$ $2$ $2$ $3$ $?$

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

Covering curve Level Index Degree Genus
120.480.13-40.p.1.5 $120$ $2$ $2$ $13$
120.480.13-40.q.1.7 $120$ $2$ $2$ $13$
120.480.13-40.s.1.1 $120$ $2$ $2$ $13$
120.480.13-40.t.1.4 $120$ $2$ $2$ $13$
120.480.13-40.bb.1.2 $120$ $2$ $2$ $13$
120.480.13-40.bc.1.9 $120$ $2$ $2$ $13$
120.480.13-40.be.1.4 $120$ $2$ $2$ $13$
120.480.13-40.bf.1.5 $120$ $2$ $2$ $13$
120.480.13-120.cl.1.15 $120$ $2$ $2$ $13$
120.480.13-120.cm.1.11 $120$ $2$ $2$ $13$
120.480.13-120.co.1.13 $120$ $2$ $2$ $13$
120.480.13-120.cp.1.14 $120$ $2$ $2$ $13$
120.480.13-120.dv.1.1 $120$ $2$ $2$ $13$
120.480.13-120.dw.1.7 $120$ $2$ $2$ $13$
120.480.13-120.dy.1.8 $120$ $2$ $2$ $13$
120.480.13-120.dz.1.9 $120$ $2$ $2$ $13$
120.480.15-40.ba.1.3 $120$ $2$ $2$ $15$
120.480.15-40.ba.1.6 $120$ $2$ $2$ $15$
120.480.15-40.bb.1.9 $120$ $2$ $2$ $15$
120.480.15-40.bb.1.15 $120$ $2$ $2$ $15$
120.480.15-40.be.1.6 $120$ $2$ $2$ $15$
120.480.15-40.be.1.9 $120$ $2$ $2$ $15$
120.480.15-40.bg.1.4 $120$ $2$ $2$ $15$
120.480.15-40.bg.1.5 $120$ $2$ $2$ $15$
120.480.15-40.bo.1.3 $120$ $2$ $2$ $15$
120.480.15-40.bo.1.10 $120$ $2$ $2$ $15$
120.480.15-40.bq.1.3 $120$ $2$ $2$ $15$
120.480.15-40.bq.1.6 $120$ $2$ $2$ $15$
120.480.15-40.bx.1.10 $120$ $2$ $2$ $15$
120.480.15-40.bx.1.13 $120$ $2$ $2$ $15$
120.480.15-120.bx.1.21 $120$ $2$ $2$ $15$
120.480.15-120.bx.1.32 $120$ $2$ $2$ $15$
120.480.15-120.by.1.21 $120$ $2$ $2$ $15$
120.480.15-120.by.1.32 $120$ $2$ $2$ $15$
120.480.15-40.bz.1.10 $120$ $2$ $2$ $15$
120.480.15-40.bz.1.15 $120$ $2$ $2$ $15$
120.480.15-120.cd.1.21 $120$ $2$ $2$ $15$
120.480.15-120.cd.1.32 $120$ $2$ $2$ $15$
120.480.15-120.ce.1.5 $120$ $2$ $2$ $15$
120.480.15-120.ce.1.8 $120$ $2$ $2$ $15$
120.480.15-120.do.1.23 $120$ $2$ $2$ $15$
120.480.15-120.do.1.28 $120$ $2$ $2$ $15$
120.480.15-120.dq.1.4 $120$ $2$ $2$ $15$
120.480.15-120.dq.1.7 $120$ $2$ $2$ $15$
120.480.15-120.dx.1.23 $120$ $2$ $2$ $15$
120.480.15-120.dx.1.28 $120$ $2$ $2$ $15$
120.480.15-120.dz.1.23 $120$ $2$ $2$ $15$
120.480.15-120.dz.1.28 $120$ $2$ $2$ $15$