Properties

Label 240.144.5-48.h.1.23
Level $240$
Index $144$
Genus $5$
Cusps $4$
$\Q$-cusps $2$

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Invariants

Level: $240$ $\SL_2$-level: $48$ Newform level: $288$
Index: $144$ $\PSL_2$-index:$72$
Genus: $5 = 1 + \frac{ 72 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 4 }{2}$
Cusps: $4$ (of which $2$ are rational) Cusp widths $6^{2}\cdot12\cdot48$ Cusp orbits $1^{2}\cdot2$
Elliptic points: $0$ of order $2$ and $0$ of order $3$
Analytic rank: not computed
$\Q$-gonality: $2 \le \gamma \le 5$
$\overline{\Q}$-gonality: $2 \le \gamma \le 5$
Rational cusps: $2$
Rational CM points: none

Other labels

Cummins and Pauli (CP) label: 48A5

Level structure

$\GL_2(\Z/240\Z)$-generators: $\begin{bmatrix}72&233\\161&36\end{bmatrix}$, $\begin{bmatrix}94&35\\139&154\end{bmatrix}$, $\begin{bmatrix}106&115\\95&106\end{bmatrix}$, $\begin{bmatrix}119&134\\118&239\end{bmatrix}$, $\begin{bmatrix}166&101\\71&128\end{bmatrix}$, $\begin{bmatrix}180&133\\203&66\end{bmatrix}$
Contains $-I$: no $\quad$ (see 48.72.5.h.1 for the level structure with $-I$)
Cyclic 240-isogeny field degree: $96$
Cyclic 240-torsion field degree: $6144$
Full 240-torsion field degree: $3932160$

Models

Embedded model Embedded model in $\mathbb{P}^{6}$

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

$ 0 $ $=$ $ x^{11} + x y^{2} z^{8} + 54 y z^{10} $
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Weierstrass model Weierstrass model

$ y^{2} $ $=$ $ x^{12} - 729 $
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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.

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

Maps to other modular curves

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

$\displaystyle j$ $=$ $\displaystyle \frac{2^4}{3^2}\cdot\frac{432yz^{4}uv-76yu^{3}v^{3}-4yv^{6}+216z^{7}-288z^{3}u^{2}v^{2}-13zwuv^{4}}{vuz^{4}y}$

Map of degree 1 from the embedded model of this modular curve to the plane model of the modular curve 48.72.5.h.1 :

$\displaystyle X$ $=$ $\displaystyle t$
$\displaystyle Y$ $=$ $\displaystyle 36z$
$\displaystyle Z$ $=$ $\displaystyle \frac{1}{6}v$

Equation of the image curve:

$0$ $=$ $ X^{11}+XY^{2}Z^{8}+54YZ^{10} $

Map of degree 1 from the embedded model of this modular curve to the Weierstrass model of the modular curve 48.72.5.h.1 :

$\displaystyle X$ $=$ $\displaystyle -\frac{1}{2}v$
$\displaystyle Y$ $=$ $\displaystyle -\frac{3}{4}ztv^{4}-\frac{1}{64}v^{6}$
$\displaystyle Z$ $=$ $\displaystyle -t$

Modular covers

This modular curve minimally covers the modular curves listed below.

Covered curve Level Index Degree Genus Rank
120.72.2-24.cw.1.14 $120$ $2$ $2$ $2$ $?$
240.48.1-48.d.1.5 $240$ $3$ $3$ $1$ $?$
240.72.2-24.cw.1.2 $240$ $2$ $2$ $2$ $?$

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

Covering curve Level Index Degree Genus
240.288.9-48.g.2.1 $240$ $2$ $2$ $9$
240.288.9-48.u.1.7 $240$ $2$ $2$ $9$
240.288.9-48.cc.1.8 $240$ $2$ $2$ $9$
240.288.9-48.ck.1.7 $240$ $2$ $2$ $9$
240.288.9-48.hu.1.9 $240$ $2$ $2$ $9$
240.288.9-48.hv.1.11 $240$ $2$ $2$ $9$
240.288.9-48.hy.1.9 $240$ $2$ $2$ $9$
240.288.9-48.hz.1.11 $240$ $2$ $2$ $9$
240.288.9-48.ik.1.16 $240$ $2$ $2$ $9$
240.288.9-48.il.1.15 $240$ $2$ $2$ $9$
240.288.9-48.io.1.16 $240$ $2$ $2$ $9$
240.288.9-48.ip.1.13 $240$ $2$ $2$ $9$
240.288.9-240.ja.1.2 $240$ $2$ $2$ $9$
240.288.9-240.jb.1.21 $240$ $2$ $2$ $9$
240.288.9-240.je.1.6 $240$ $2$ $2$ $9$
240.288.9-240.jf.1.45 $240$ $2$ $2$ $9$
240.288.9-240.kg.1.4 $240$ $2$ $2$ $9$
240.288.9-240.kh.1.12 $240$ $2$ $2$ $9$
240.288.9-240.kk.1.4 $240$ $2$ $2$ $9$
240.288.9-240.kl.1.12 $240$ $2$ $2$ $9$
240.288.9-48.kw.1.19 $240$ $2$ $2$ $9$
240.288.9-240.kw.1.22 $240$ $2$ $2$ $9$
240.288.9-48.kx.1.15 $240$ $2$ $2$ $9$
240.288.9-240.kx.1.10 $240$ $2$ $2$ $9$
240.288.9-48.la.1.12 $240$ $2$ $2$ $9$
240.288.9-240.la.1.22 $240$ $2$ $2$ $9$
240.288.9-48.lb.1.15 $240$ $2$ $2$ $9$
240.288.9-240.lb.1.6 $240$ $2$ $2$ $9$
240.288.9-48.lm.1.16 $240$ $2$ $2$ $9$
240.288.9-48.ln.1.13 $240$ $2$ $2$ $9$
240.288.9-48.lq.1.16 $240$ $2$ $2$ $9$
240.288.9-48.lr.1.15 $240$ $2$ $2$ $9$
240.288.9-48.ma.1.8 $240$ $2$ $2$ $9$
240.288.9-48.md.1.7 $240$ $2$ $2$ $9$
240.288.9-48.me.1.8 $240$ $2$ $2$ $9$
240.288.9-48.mh.1.7 $240$ $2$ $2$ $9$
240.288.9-240.nm.1.14 $240$ $2$ $2$ $9$
240.288.9-240.nn.1.2 $240$ $2$ $2$ $9$
240.288.9-240.nq.1.30 $240$ $2$ $2$ $9$
240.288.9-240.nr.1.2 $240$ $2$ $2$ $9$
240.288.9-240.oc.1.2 $240$ $2$ $2$ $9$
240.288.9-240.od.1.14 $240$ $2$ $2$ $9$
240.288.9-240.og.1.2 $240$ $2$ $2$ $9$
240.288.9-240.oh.1.8 $240$ $2$ $2$ $9$
240.288.9-240.pi.1.30 $240$ $2$ $2$ $9$
240.288.9-240.pj.1.21 $240$ $2$ $2$ $9$
240.288.9-240.pm.1.30 $240$ $2$ $2$ $9$
240.288.9-240.pn.1.21 $240$ $2$ $2$ $9$