Properties

Label 120.72.2-24.cw.1.14
Level $120$
Index $72$
Genus $2$
Cusps $4$
$\Q$-cusps $2$

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Invariants

Level: $120$ $\SL_2$-level: $24$ Newform level: $144$
Index: $72$ $\PSL_2$-index:$36$
Genus: $2 = 1 + \frac{ 36 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 4 }{2}$
Cusps: $4$ (of which $2$ are rational) Cusp widths $3^{2}\cdot6\cdot24$ Cusp orbits $1^{2}\cdot2$
Elliptic points: $0$ of order $2$ and $0$ of order $3$
Analytic rank: not computed
$\Q$-gonality: $2$
$\overline{\Q}$-gonality: $2$
Rational cusps: $2$
Rational CM points: none

Other labels

Cummins and Pauli (CP) label: 24B2

Level structure

$\GL_2(\Z/120\Z)$-generators: $\begin{bmatrix}7&52\\68&7\end{bmatrix}$, $\begin{bmatrix}37&78\\90&41\end{bmatrix}$, $\begin{bmatrix}56&35\\77&94\end{bmatrix}$, $\begin{bmatrix}64&53\\31&70\end{bmatrix}$, $\begin{bmatrix}65&12\\42&7\end{bmatrix}$, $\begin{bmatrix}77&110\\86&61\end{bmatrix}$
Contains $-I$: no $\quad$ (see 24.36.2.cw.1 for the level structure with $-I$)
Cyclic 120-isogeny field degree: $48$
Cyclic 120-torsion field degree: $1536$
Full 120-torsion field degree: $491520$

Models

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

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

$ 0 $ $=$ $ x^{5} + x y^{2} z^{2} - 2 y z^{4} $
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Weierstrass model Weierstrass model

$ y^{2} $ $=$ $ x^{6} - 1 $
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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
$(0:0:0:1)$, $(0:0:1:0)$

Maps to other modular curves

$j$-invariant map of degree 36 from the embedded model of this modular curve to the modular curve $X(1)$ :

$\displaystyle j$ $=$ $\displaystyle 2^6\,\frac{12xyz^{5}w-76xz^{3}w^{4}-16y^{2}w^{6}-48yz^{4}w^{3}-z^{8}+16z^{2}w^{6}}{wz^{5}yx}$

Map of degree 1 from the embedded model of this modular curve to the plane model of the modular curve 24.36.2.cw.1 :

$\displaystyle X$ $=$ $\displaystyle x$
$\displaystyle Y$ $=$ $\displaystyle 2z$
$\displaystyle Z$ $=$ $\displaystyle \frac{1}{2}w$

Equation of the image curve:

$0$ $=$ $ X^{5}+XY^{2}Z^{2}-2YZ^{4} $

Map of degree 1 from the embedded model of this modular curve to the Weierstrass model of the modular curve 24.36.2.cw.1 :

$\displaystyle X$ $=$ $\displaystyle -\frac{1}{2}w$
$\displaystyle Y$ $=$ $\displaystyle -xzw+\frac{1}{8}w^{3}$
$\displaystyle Z$ $=$ $\displaystyle -x$

Modular covers

The following modular covers realize this modular curve as a fiber product over $X(1)$.

Factor curve Level Index Degree Genus Rank
$X_{\mathrm{ns}}^+(3)$ $3$ $24$ $12$ $0$ $0$
40.24.0-8.o.1.8 $40$ $3$ $3$ $0$ $0$

This modular curve minimally covers the modular curves listed below.

Covered curve Level Index Degree Genus Rank
40.24.0-8.o.1.8 $40$ $3$ $3$ $0$ $0$
60.36.1-12.c.1.8 $60$ $2$ $2$ $1$ $0$
120.36.1-12.c.1.9 $120$ $2$ $2$ $1$ $?$

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

Covering curve Level Index Degree Genus
120.144.3-24.oe.1.5 $120$ $2$ $2$ $3$
120.144.3-24.og.1.6 $120$ $2$ $2$ $3$
120.144.3-24.om.1.5 $120$ $2$ $2$ $3$
120.144.3-24.oo.1.6 $120$ $2$ $2$ $3$
120.144.3-24.po.1.11 $120$ $2$ $2$ $3$
120.144.3-24.pq.1.5 $120$ $2$ $2$ $3$
120.144.3-24.pw.1.7 $120$ $2$ $2$ $3$
120.144.3-24.py.1.5 $120$ $2$ $2$ $3$
120.144.4-24.ch.1.2 $120$ $2$ $2$ $4$
120.144.4-24.ci.1.1 $120$ $2$ $2$ $4$
120.144.4-24.eu.1.1 $120$ $2$ $2$ $4$
120.144.4-24.ew.1.1 $120$ $2$ $2$ $4$
120.144.4-24.fo.1.13 $120$ $2$ $2$ $4$
120.144.4-24.fq.1.13 $120$ $2$ $2$ $4$
120.144.4-24.ga.1.9 $120$ $2$ $2$ $4$
120.144.4-24.gc.1.13 $120$ $2$ $2$ $4$
120.144.4-24.hg.1.1 $120$ $2$ $2$ $4$
120.144.4-24.hi.1.4 $120$ $2$ $2$ $4$
120.144.4-24.ho.1.1 $120$ $2$ $2$ $4$
120.144.4-24.hq.1.7 $120$ $2$ $2$ $4$
120.144.4-24.im.1.1 $120$ $2$ $2$ $4$
120.144.4-24.io.1.1 $120$ $2$ $2$ $4$
120.144.4-24.iu.1.1 $120$ $2$ $2$ $4$
120.144.4-24.iw.1.1 $120$ $2$ $2$ $4$
240.144.4-48.s.1.28 $240$ $2$ $2$ $4$
240.144.4-48.t.1.26 $240$ $2$ $2$ $4$
240.144.4-48.w.1.26 $240$ $2$ $2$ $4$
240.144.4-48.x.1.28 $240$ $2$ $2$ $4$
240.144.4-48.bi.1.10 $240$ $2$ $2$ $4$
240.144.4-48.bj.1.12 $240$ $2$ $2$ $4$
240.144.4-48.bm.1.12 $240$ $2$ $2$ $4$
240.144.4-48.bn.1.10 $240$ $2$ $2$ $4$
240.144.5-48.c.1.23 $240$ $2$ $2$ $5$
240.144.5-48.d.1.21 $240$ $2$ $2$ $5$
240.144.5-48.g.1.21 $240$ $2$ $2$ $5$
240.144.5-48.h.1.23 $240$ $2$ $2$ $5$
240.144.5-48.k.1.2 $240$ $2$ $2$ $5$
240.144.5-48.l.1.1 $240$ $2$ $2$ $5$
240.144.5-48.o.1.1 $240$ $2$ $2$ $5$
240.144.5-48.p.1.2 $240$ $2$ $2$ $5$
120.144.3-120.ccy.1.18 $120$ $2$ $2$ $3$
120.144.3-120.cda.1.3 $120$ $2$ $2$ $3$
120.144.3-120.cdo.1.10 $120$ $2$ $2$ $3$
120.144.3-120.cdq.1.3 $120$ $2$ $2$ $3$
120.144.3-120.cfk.1.21 $120$ $2$ $2$ $3$
120.144.3-120.cfm.1.25 $120$ $2$ $2$ $3$
120.144.3-120.cga.1.9 $120$ $2$ $2$ $3$
120.144.3-120.cgc.1.9 $120$ $2$ $2$ $3$
120.144.4-120.ky.1.1 $120$ $2$ $2$ $4$
120.144.4-120.la.1.1 $120$ $2$ $2$ $4$
120.144.4-120.lw.1.25 $120$ $2$ $2$ $4$
120.144.4-120.ly.1.1 $120$ $2$ $2$ $4$
120.144.4-120.nk.1.21 $120$ $2$ $2$ $4$
120.144.4-120.nm.1.26 $120$ $2$ $2$ $4$
120.144.4-120.oi.1.17 $120$ $2$ $2$ $4$
120.144.4-120.ok.1.21 $120$ $2$ $2$ $4$
120.144.4-120.qm.1.25 $120$ $2$ $2$ $4$
120.144.4-120.qo.1.25 $120$ $2$ $2$ $4$
120.144.4-120.rc.1.25 $120$ $2$ $2$ $4$
120.144.4-120.re.1.29 $120$ $2$ $2$ $4$
120.144.4-120.sy.1.25 $120$ $2$ $2$ $4$
120.144.4-120.ta.1.25 $120$ $2$ $2$ $4$
120.144.4-120.to.1.29 $120$ $2$ $2$ $4$
120.144.4-120.tq.1.9 $120$ $2$ $2$ $4$
120.360.14-120.gg.1.50 $120$ $5$ $5$ $14$
120.432.15-120.jq.1.108 $120$ $6$ $6$ $15$
240.144.4-240.by.1.52 $240$ $2$ $2$ $4$
240.144.4-240.bz.1.36 $240$ $2$ $2$ $4$
240.144.4-240.cc.1.56 $240$ $2$ $2$ $4$
240.144.4-240.cd.1.64 $240$ $2$ $2$ $4$
240.144.4-240.co.1.34 $240$ $2$ $2$ $4$
240.144.4-240.cp.1.50 $240$ $2$ $2$ $4$
240.144.4-240.cs.1.62 $240$ $2$ $2$ $4$
240.144.4-240.ct.1.54 $240$ $2$ $2$ $4$
240.144.5-240.c.1.11 $240$ $2$ $2$ $5$
240.144.5-240.d.1.3 $240$ $2$ $2$ $5$
240.144.5-240.g.1.15 $240$ $2$ $2$ $5$
240.144.5-240.h.1.31 $240$ $2$ $2$ $5$
240.144.5-240.k.1.33 $240$ $2$ $2$ $5$
240.144.5-240.l.1.49 $240$ $2$ $2$ $5$
240.144.5-240.o.1.61 $240$ $2$ $2$ $5$
240.144.5-240.p.1.53 $240$ $2$ $2$ $5$