Properties

Label 120.240.7-40.g.1.3
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: $\begin{bmatrix}21&76\\106&43\end{bmatrix}$, $\begin{bmatrix}43&16\\86&55\end{bmatrix}$, $\begin{bmatrix}65&32\\98&25\end{bmatrix}$, $\begin{bmatrix}85&6\\104&25\end{bmatrix}$, $\begin{bmatrix}85&78\\62&25\end{bmatrix}$, $\begin{bmatrix}91&104\\18&59\end{bmatrix}$
Contains $-I$: no $\quad$ (see 40.120.7.g.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 + 2 x t - x v + z u + z v $
$=$ $x w - x u - y w + y t + y u - y v - z w - z t$
$=$ $2 x w - x t + x u - x v + y u + y v - z u - z v$
$=$ $x w - x u - 2 y w - y t + y u + 2 z w + z u - 2 z v$
$=$$\cdots$
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Singular plane model Singular plane model

$ 0 $ $=$ $ 7200 x^{12} + 28800 x^{11} y - 40800 x^{10} y^{2} + 1600 x^{10} z^{2} - 60000 x^{9} y^{3} + \cdots + 2 y^{4} z^{8} $
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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 :

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

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.g.1 :

$\displaystyle X$ $=$ $\displaystyle x$
$\displaystyle Y$ $=$ $\displaystyle y$
$\displaystyle Z$ $=$ $\displaystyle w$

Equation of the image curve:

$0$ $=$ $ 7200X^{12}+28800X^{11}Y-40800X^{10}Y^{2}+1600X^{10}Z^{2}-60000X^{9}Y^{3}+9200X^{9}YZ^{2}+293000X^{8}Y^{4}-9000X^{8}Y^{2}Z^{2}+160X^{8}Z^{4}-457200X^{7}Y^{5}+34050X^{7}Y^{3}Z^{2}+320X^{7}YZ^{4}+368200X^{6}Y^{6}-101825X^{6}Y^{4}Z^{2}+3610X^{6}Y^{2}Z^{4}-145200X^{5}Y^{7}+98150X^{5}Y^{5}Z^{2}-8570X^{5}Y^{3}Z^{4}+80X^{5}YZ^{6}-12000X^{4}Y^{8}-27000X^{4}Y^{6}Z^{2}+6110X^{4}Y^{4}Z^{4}-180X^{4}Y^{2}Z^{6}+30000X^{3}Y^{9}-4300X^{3}Y^{7}Z^{2}-2330X^{3}Y^{5}Z^{4}+220X^{3}Y^{3}Z^{6}-3800X^{2}Y^{10}+325X^{2}Y^{8}Z^{2}+1010X^{2}Y^{6}Z^{4}-160X^{2}Y^{4}Z^{6}+2X^{2}Y^{2}Z^{8}-1200XY^{11}+500XY^{9}Z^{2}-200XY^{7}Z^{4}+60XY^{5}Z^{6}-4XY^{3}Z^{8}+200Y^{12}-100Y^{10}Z^{2}+50Y^{8}Z^{4}-20Y^{6}Z^{6}+2Y^{4}Z^{8} $

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.1.4 $120$ $2$ $2$ $3$ $?$

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.d.1.1 $120$ $2$ $2$ $13$
120.480.13-40.e.1.14 $120$ $2$ $2$ $13$
120.480.13-40.g.1.3 $120$ $2$ $2$ $13$
120.480.13-40.h.1.5 $120$ $2$ $2$ $13$
120.480.13-120.bb.1.1 $120$ $2$ $2$ $13$
120.480.13-120.bc.1.14 $120$ $2$ $2$ $13$
120.480.13-120.be.1.5 $120$ $2$ $2$ $13$
120.480.13-120.bf.1.7 $120$ $2$ $2$ $13$
120.480.13-40.bn.1.3 $120$ $2$ $2$ $13$
120.480.13-40.bo.1.3 $120$ $2$ $2$ $13$
120.480.13-40.bq.1.1 $120$ $2$ $2$ $13$
120.480.13-40.br.1.7 $120$ $2$ $2$ $13$
120.480.13-120.ff.1.11 $120$ $2$ $2$ $13$
120.480.13-120.fg.1.15 $120$ $2$ $2$ $13$
120.480.13-120.fi.1.3 $120$ $2$ $2$ $13$
120.480.13-120.fj.1.14 $120$ $2$ $2$ $13$
120.480.15-40.bh.1.3 $120$ $2$ $2$ $15$
120.480.15-40.bh.1.6 $120$ $2$ $2$ $15$
120.480.15-40.bi.1.10 $120$ $2$ $2$ $15$
120.480.15-40.bi.1.15 $120$ $2$ $2$ $15$
120.480.15-40.bl.1.3 $120$ $2$ $2$ $15$
120.480.15-40.bl.1.10 $120$ $2$ $2$ $15$
120.480.15-40.bn.1.3 $120$ $2$ $2$ $15$
120.480.15-40.bn.1.10 $120$ $2$ $2$ $15$
120.480.15-40.bo.1.3 $120$ $2$ $2$ $15$
120.480.15-40.bo.1.5 $120$ $2$ $2$ $15$
120.480.15-40.bp.1.1 $120$ $2$ $2$ $15$
120.480.15-40.bp.1.11 $120$ $2$ $2$ $15$
120.480.15-40.bu.1.11 $120$ $2$ $2$ $15$
120.480.15-40.bu.1.13 $120$ $2$ $2$ $15$
120.480.15-40.bv.1.9 $120$ $2$ $2$ $15$
120.480.15-40.bv.1.15 $120$ $2$ $2$ $15$
120.480.15-120.cq.1.11 $120$ $2$ $2$ $15$
120.480.15-120.cq.1.16 $120$ $2$ $2$ $15$
120.480.15-120.cr.1.23 $120$ $2$ $2$ $15$
120.480.15-120.cr.1.24 $120$ $2$ $2$ $15$
120.480.15-120.cw.1.15 $120$ $2$ $2$ $15$
120.480.15-120.cw.1.32 $120$ $2$ $2$ $15$
120.480.15-120.cx.1.4 $120$ $2$ $2$ $15$
120.480.15-120.cx.1.27 $120$ $2$ $2$ $15$
120.480.15-120.ea.1.7 $120$ $2$ $2$ $15$
120.480.15-120.ea.1.24 $120$ $2$ $2$ $15$
120.480.15-120.eb.1.10 $120$ $2$ $2$ $15$
120.480.15-120.eb.1.29 $120$ $2$ $2$ $15$
120.480.15-120.eg.1.5 $120$ $2$ $2$ $15$
120.480.15-120.eg.1.8 $120$ $2$ $2$ $15$
120.480.15-120.eh.1.11 $120$ $2$ $2$ $15$
120.480.15-120.eh.1.12 $120$ $2$ $2$ $15$