Properties

Label 120.240.7-40.f.1.13
Level $120$
Index $240$
Genus $7$
Cusps $8$
$\Q$-cusps $0$

Related objects

Downloads

Learn more

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: $\begin{bmatrix}13&58\\68&27\end{bmatrix}$, $\begin{bmatrix}35&34\\14&93\end{bmatrix}$, $\begin{bmatrix}45&26\\16&107\end{bmatrix}$, $\begin{bmatrix}49&88\\0&91\end{bmatrix}$, $\begin{bmatrix}51&44\\94&59\end{bmatrix}$, $\begin{bmatrix}89&78\\98&25\end{bmatrix}$
Contains $-I$: no $\quad$ (see 40.120.7.f.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$
Copy content Toggle raw display

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} $
Copy content Toggle raw display

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 :

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

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.f.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.m.1.7 $120$ $2$ $2$ $13$
120.480.13-40.n.1.4 $120$ $2$ $2$ $13$
120.480.13-40.v.1.7 $120$ $2$ $2$ $13$
120.480.13-40.w.1.7 $120$ $2$ $2$ $13$
120.480.13-40.y.1.4 $120$ $2$ $2$ $13$
120.480.13-40.z.1.5 $120$ $2$ $2$ $13$
120.480.13-40.bh.1.4 $120$ $2$ $2$ $13$
120.480.13-40.bi.1.9 $120$ $2$ $2$ $13$
120.480.13-120.ci.1.5 $120$ $2$ $2$ $13$
120.480.13-120.cj.1.9 $120$ $2$ $2$ $13$
120.480.13-120.cr.1.9 $120$ $2$ $2$ $13$
120.480.13-120.cs.1.13 $120$ $2$ $2$ $13$
120.480.13-120.ds.1.1 $120$ $2$ $2$ $13$
120.480.13-120.dt.1.9 $120$ $2$ $2$ $13$
120.480.13-120.eb.1.8 $120$ $2$ $2$ $13$
120.480.13-120.ec.1.7 $120$ $2$ $2$ $13$
120.480.15-40.bc.1.4 $120$ $2$ $2$ $15$
120.480.15-40.bc.1.5 $120$ $2$ $2$ $15$
120.480.15-40.bd.1.4 $120$ $2$ $2$ $15$
120.480.15-40.bd.1.5 $120$ $2$ $2$ $15$
120.480.15-40.be.1.9 $120$ $2$ $2$ $15$
120.480.15-40.be.1.16 $120$ $2$ $2$ $15$
120.480.15-40.bf.1.9 $120$ $2$ $2$ $15$
120.480.15-40.bf.1.15 $120$ $2$ $2$ $15$
120.480.15-40.br.1.10 $120$ $2$ $2$ $15$
120.480.15-40.br.1.15 $120$ $2$ $2$ $15$
120.480.15-40.bt.1.6 $120$ $2$ $2$ $15$
120.480.15-40.bt.1.15 $120$ $2$ $2$ $15$
120.480.15-40.bu.1.10 $120$ $2$ $2$ $15$
120.480.15-40.bu.1.13 $120$ $2$ $2$ $15$
120.480.15-40.bw.1.3 $120$ $2$ $2$ $15$
120.480.15-40.bw.1.6 $120$ $2$ $2$ $15$
120.480.15-120.ca.1.20 $120$ $2$ $2$ $15$
120.480.15-120.ca.1.21 $120$ $2$ $2$ $15$
120.480.15-120.cb.1.9 $120$ $2$ $2$ $15$
120.480.15-120.cb.1.12 $120$ $2$ $2$ $15$
120.480.15-120.cg.1.4 $120$ $2$ $2$ $15$
120.480.15-120.cg.1.17 $120$ $2$ $2$ $15$
120.480.15-120.ch.1.5 $120$ $2$ $2$ $15$
120.480.15-120.ch.1.32 $120$ $2$ $2$ $15$
120.480.15-120.dr.1.2 $120$ $2$ $2$ $15$
120.480.15-120.dr.1.21 $120$ $2$ $2$ $15$
120.480.15-120.dt.1.7 $120$ $2$ $2$ $15$
120.480.15-120.dt.1.28 $120$ $2$ $2$ $15$
120.480.15-120.du.1.18 $120$ $2$ $2$ $15$
120.480.15-120.du.1.23 $120$ $2$ $2$ $15$
120.480.15-120.dw.1.10 $120$ $2$ $2$ $15$
120.480.15-120.dw.1.11 $120$ $2$ $2$ $15$