Properties

Label 264.288.8-24.er.1.28
Level $264$
Index $288$
Genus $8$
Cusps $10$
$\Q$-cusps $2$

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Invariants

Level: $264$ $\SL_2$-level: $24$ Newform level: $144$
Index: $288$ $\PSL_2$-index:$144$
Genus: $8 = 1 + \frac{ 144 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 10 }{2}$
Cusps: $10$ (of which $2$ are rational) Cusp widths $6^{4}\cdot12^{2}\cdot24^{4}$ Cusp orbits $1^{2}\cdot2^{2}\cdot4$
Elliptic points: $0$ of order $2$ and $0$ of order $3$
Analytic rank: not computed
$\Q$-gonality: $3 \le \gamma \le 8$
$\overline{\Q}$-gonality: $3 \le \gamma \le 8$
Rational cusps: $2$
Rational CM points: none

Other labels

Cummins and Pauli (CP) label: 24B8

Level structure

$\GL_2(\Z/264\Z)$-generators: $\begin{bmatrix}15&68\\88&111\end{bmatrix}$, $\begin{bmatrix}23&166\\64&157\end{bmatrix}$, $\begin{bmatrix}47&24\\144&149\end{bmatrix}$, $\begin{bmatrix}111&154\\52&53\end{bmatrix}$, $\begin{bmatrix}185&164\\80&85\end{bmatrix}$, $\begin{bmatrix}201&22\\100&197\end{bmatrix}$
Contains $-I$: no $\quad$ (see 24.144.8.er.1 for the level structure with $-I$)
Cyclic 264-isogeny field degree: $96$
Cyclic 264-torsion field degree: $3840$
Full 264-torsion field degree: $3379200$

Models

Canonical model in $\mathbb{P}^{ 7 }$ defined by 20 equations

$ 0 $ $=$ $ t^{2} - t u + u^{2} + v r $
$=$ $3 w^{2} + v r$
$=$ $2 w t - w u - w r - u r - v r$
$=$ $w v + w r - u v + u r + 2 v r$
$=$$\cdots$
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Singular plane model Singular plane model

$ 0 $ $=$ $ - 3 x^{8} + 12 x^{7} y - 3 x^{6} y^{2} - 60 x^{5} y^{3} + 7 x^{5} z^{3} + 159 x^{4} y^{4} + \cdots + 24 y^{8} $
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Rational points

This modular curve has 2 rational cusps but no known non-cuspidal rational points. The following are the coordinates of the rational cusps on this modular curve.

Canonical model
$(0:0:0:0:0:0:1:0)$, $(0:0:0:0:0:0:0:1)$

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 24.72.4.y.2 :

$\displaystyle X$ $=$ $\displaystyle x$
$\displaystyle Y$ $=$ $\displaystyle w$
$\displaystyle Z$ $=$ $\displaystyle x-y-2z$
$\displaystyle W$ $=$ $\displaystyle v+r$

Equation of the image curve:

$0$ $=$ $ 6XY-ZW $
$=$ $ 3X^{3}-24Y^{3}+XZ^{2}-YW^{2} $

Map of degree 1 from the canonical model of this modular curve to the plane model of the modular curve 24.144.8.er.1 :

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

Equation of the image curve:

$0$ $=$ $ -3X^{8}+12X^{7}Y-3X^{6}Y^{2}-60X^{5}Y^{3}+7X^{5}Z^{3}+159X^{4}Y^{4}-20X^{4}YZ^{3}-222X^{3}Y^{5}+24X^{3}Y^{2}Z^{3}+186X^{2}Y^{6}-8X^{2}Y^{3}Z^{3}-96XY^{7}+4XY^{4}Z^{3}+24Y^{8} $

Modular covers

This modular curve minimally covers the modular curves listed below.

Covered curve Level Index Degree Genus Rank
264.144.4-24.y.2.38 $264$ $2$ $2$ $4$ $?$
264.144.4-24.y.2.49 $264$ $2$ $2$ $4$ $?$
264.144.4-24.z.1.16 $264$ $2$ $2$ $4$ $?$
264.144.4-24.z.1.29 $264$ $2$ $2$ $4$ $?$
264.144.4-24.cd.1.18 $264$ $2$ $2$ $4$ $?$
264.144.4-24.cd.1.31 $264$ $2$ $2$ $4$ $?$