Properties

Label 120.144.1-60.k.2.4
Level $120$
Index $144$
Genus $1$
Cusps $12$
$\Q$-cusps $0$

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Invariants

Level: $120$ $\SL_2$-level: $40$ Newform level: $80$
Index: $144$ $\PSL_2$-index:$72$
Genus: $1 = 1 + \frac{ 72 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 12 }{2}$
Cusps: $12$ (none of which are rational) Cusp widths $1^{4}\cdot4^{2}\cdot5^{4}\cdot20^{2}$ Cusp orbits $2^{2}\cdot4^{2}$
Elliptic points: $0$ of order $2$ and $0$ of order $3$
Analytic rank: not computed
$\Q$-gonality: $2 \le \gamma \le 72$
$\overline{\Q}$-gonality: $2$
Rational cusps: $0$
Rational CM points: none

Other labels

Cummins and Pauli (CP) label: 20H1

Level structure

$\GL_2(\Z/120\Z)$-generators: $\begin{bmatrix}14&109\\105&88\end{bmatrix}$, $\begin{bmatrix}28&103\\105&106\end{bmatrix}$, $\begin{bmatrix}39&28\\52&65\end{bmatrix}$, $\begin{bmatrix}60&101\\31&90\end{bmatrix}$, $\begin{bmatrix}108&91\\59&70\end{bmatrix}$
Contains $-I$: no $\quad$ (see 60.72.1.k.2 for the level structure with $-I$)
Cyclic 120-isogeny field degree: $16$
Cyclic 120-torsion field degree: $512$
Full 120-torsion field degree: $245760$

Jacobian

Conductor: $?$
Simple: yes
Squarefree: yes
Decomposition: $1$
Newforms: 80.2.a.b

Models

Embedded model Embedded model in $\mathbb{P}^{3}$

$ 0 $ $=$ $ 3 x^{2} - y^{2} + y z + y w $
$=$ $y^{2} - 2 y z - 2 y w + 2 z^{2} + z w + 2 w^{2}$
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Singular plane model Singular plane model

$ 0 $ $=$ $ 2 x^{4} + 3 x^{2} y z - 6 x^{2} z^{2} + 3 y^{2} z^{2} - 9 y z^{3} + 9 z^{4} $
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Rational points

This modular curve has no real points, and therefore no rational points.

Maps to other modular curves

$j$-invariant map of degree 72 from the embedded model of this modular curve to the modular curve $X(1)$ :

$\displaystyle j$ $=$ $\displaystyle -3^3\,\frac{236yz^{17}-2420yz^{16}w+11024yz^{15}w^{2}-32880yz^{14}w^{3}+70800yz^{13}w^{4}-109488yz^{12}w^{5}+133232yz^{11}w^{6}-109328yz^{10}w^{7}+42920yz^{9}w^{8}+42920yz^{8}w^{9}-109328yz^{7}w^{10}+133232yz^{6}w^{11}-109488yz^{5}w^{12}+70800yz^{4}w^{13}-32880yz^{3}w^{14}+11024yz^{2}w^{15}-2420yzw^{16}+236yw^{17}-121z^{18}+990z^{17}w-5265z^{16}w^{2}+23296z^{15}w^{3}-64980z^{14}w^{4}+133416z^{13}w^{5}-246116z^{12}w^{6}+342144z^{11}w^{7}-445374z^{10}w^{8}+462580z^{9}w^{9}-445374z^{8}w^{10}+342144z^{7}w^{11}-246116z^{6}w^{12}+133416z^{5}w^{13}-64980z^{4}w^{14}+23296z^{3}w^{15}-5265z^{2}w^{16}+990zw^{17}-121w^{18}}{(z+w)^{5}(z^{2}-zw+w^{2})^{5}(2yz^{2}-8yzw+2yw^{2}+6z^{3}+9z^{2}w+9zw^{2}+6w^{3})}$

Map of degree 1 from the embedded model of this modular curve to the plane model of the modular curve 60.72.1.k.2 :

$\displaystyle X$ $=$ $\displaystyle x$
$\displaystyle Y$ $=$ $\displaystyle w$
$\displaystyle Z$ $=$ $\displaystyle \frac{1}{3}y$

Equation of the image curve:

$0$ $=$ $ 2X^{4}+3X^{2}YZ-6X^{2}Z^{2}+3Y^{2}Z^{2}-9YZ^{3}+9Z^{4} $

Modular covers

This modular curve minimally covers the modular curves listed below.

Covered curve Level Index Degree Genus Rank Kernel decomposition
40.72.1-20.b.1.9 $40$ $2$ $2$ $1$ $0$ dimension zero
120.72.1-20.b.1.16 $120$ $2$ $2$ $1$ $?$ dimension zero

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

Covering curve Level Index Degree Genus Rank Kernel decomposition
120.288.5-60.bc.1.10 $120$ $2$ $2$ $5$ $?$ not computed
120.288.5-60.bx.1.3 $120$ $2$ $2$ $5$ $?$ not computed
120.288.5-60.ez.1.4 $120$ $2$ $2$ $5$ $?$ not computed
120.288.5-60.fa.1.5 $120$ $2$ $2$ $5$ $?$ not computed
120.288.5-60.fg.1.4 $120$ $2$ $2$ $5$ $?$ not computed
120.288.5-60.fi.1.3 $120$ $2$ $2$ $5$ $?$ not computed
120.288.5-120.fs.1.7 $120$ $2$ $2$ $5$ $?$ not computed
120.288.5-60.fx.1.4 $120$ $2$ $2$ $5$ $?$ not computed
120.288.5-60.fy.1.5 $120$ $2$ $2$ $5$ $?$ not computed
120.288.5-120.ni.1.6 $120$ $2$ $2$ $5$ $?$ not computed
120.288.5-120.bka.1.5 $120$ $2$ $2$ $5$ $?$ not computed
120.288.5-120.bkh.1.7 $120$ $2$ $2$ $5$ $?$ not computed
120.288.5-120.bly.1.8 $120$ $2$ $2$ $5$ $?$ not computed
120.288.5-120.bml.1.6 $120$ $2$ $2$ $5$ $?$ not computed
120.288.5-120.bqm.1.7 $120$ $2$ $2$ $5$ $?$ not computed
120.288.5-120.bqt.1.7 $120$ $2$ $2$ $5$ $?$ not computed
120.432.13-60.bc.1.29 $120$ $3$ $3$ $13$ $?$ not computed