Properties

Label 60.240.8-60.n.1.1
Level $60$
Index $240$
Genus $8$
Analytic rank $1$
Cusps $6$
$\Q$-cusps $2$

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Invariants

Level: $60$ $\SL_2$-level: $60$ Newform level: $1200$
Index: $240$ $\PSL_2$-index:$120$
Genus: $8 = 1 + \frac{ 120 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 6 }{2}$
Cusps: $6$ (of which $2$ are rational) Cusp widths $5^{2}\cdot15^{2}\cdot20\cdot60$ Cusp orbits $1^{2}\cdot2^{2}$
Elliptic points: $0$ of order $2$ and $0$ of order $3$
Analytic rank: $1$
$\Q$-gonality: $3 \le \gamma \le 5$
$\overline{\Q}$-gonality: $3 \le \gamma \le 5$
Rational cusps: $2$
Rational CM points: none

Other labels

Cummins and Pauli (CP) label: 60C8
Rouse, Sutherland, and Zureick-Brown (RSZB) label: 60.240.8.55

Level structure

$\GL_2(\Z/60\Z)$-generators: $\begin{bmatrix}17&3\\6&41\end{bmatrix}$, $\begin{bmatrix}19&36\\54&49\end{bmatrix}$, $\begin{bmatrix}35&1\\42&35\end{bmatrix}$, $\begin{bmatrix}37&55\\30&53\end{bmatrix}$
Contains $-I$: no $\quad$ (see 60.120.8.n.1 for the level structure with $-I$)
Cyclic 60-isogeny field degree: $12$
Cyclic 60-torsion field degree: $192$
Full 60-torsion field degree: $9216$

Jacobian

Conductor: $2^{18}\cdot3^{4}\cdot5^{16}$
Simple: no
Squarefree: no
Decomposition: $1^{8}$
Newforms: 50.2.a.b$^{2}$, 75.2.a.a$^{2}$, 400.2.a.f$^{2}$, 1200.2.a.c, 1200.2.a.n

Models

Canonical model in $\mathbb{P}^{ 7 }$ defined by 15 equations

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

$ 0 $ $=$ $ x^{8} y^{2} + 12 x^{6} y^{4} + 5 x^{5} y^{4} z - 10 x^{5} y^{2} z^{3} + x^{5} z^{5} + 30 x^{4} y^{6} + \cdots + 9 y^{10} $
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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
$(1:0:0:0:0:0:0:0)$, $(0:0:0:-1:0:0:-1:1)$

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 30.60.4.b.1 :

$\displaystyle X$ $=$ $\displaystyle y$
$\displaystyle Y$ $=$ $\displaystyle -z$
$\displaystyle Z$ $=$ $\displaystyle -t$
$\displaystyle W$ $=$ $\displaystyle u$

Equation of the image curve:

$0$ $=$ $ X^{2}-4XY+XZ+3YZ-XW+2W^{2} $
$=$ $ X^{3}-X^{2}Y+X^{2}Z-2XYZ-Y^{2}Z+YZ^{2}-2X^{2}W-XYW-XZW+XW^{2}+ZW^{2} $

Map of degree 1 from the canonical model of this modular curve to the plane model of the modular curve 60.120.8.n.1 :

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

Equation of the image curve:

$0$ $=$ $ X^{8}Y^{2}+12X^{6}Y^{4}+5X^{5}Y^{4}Z-10X^{5}Y^{2}Z^{3}+X^{5}Z^{5}+30X^{4}Y^{6}+30X^{3}Y^{6}Z-60X^{3}Y^{4}Z^{3}+6X^{3}Y^{2}Z^{5}+36X^{2}Y^{8}-80X^{2}Y^{6}Z^{2}+40X^{2}Y^{4}Z^{4}-15XY^{8}Z+30XY^{6}Z^{3}-3XY^{4}Z^{5}+9Y^{10} $

Modular covers

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

Factor curve Level Index Degree Genus Rank Kernel decomposition
$X_{S_4}(5)$ $5$ $48$ $24$ $0$ $0$ full Jacobian
12.48.0-12.f.1.3 $12$ $5$ $5$ $0$ $0$ full Jacobian

This modular curve minimally covers the modular curves listed below.

Covered curve Level Index Degree Genus Rank Kernel decomposition
12.48.0-12.f.1.3 $12$ $5$ $5$ $0$ $0$ full Jacobian
30.120.4-30.b.1.1 $30$ $2$ $2$ $4$ $0$ $1^{4}$
60.120.4-30.b.1.2 $60$ $2$ $2$ $4$ $0$ $1^{4}$

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

Covering curve Level Index Degree Genus Rank Kernel decomposition
60.480.17-60.a.1.24 $60$ $2$ $2$ $17$ $3$ $1^{9}$
60.480.17-60.i.1.8 $60$ $2$ $2$ $17$ $3$ $1^{9}$
60.480.17-60.q.1.6 $60$ $2$ $2$ $17$ $2$ $1^{9}$
60.480.17-60.r.1.5 $60$ $2$ $2$ $17$ $6$ $1^{9}$
60.480.17-60.u.1.6 $60$ $2$ $2$ $17$ $2$ $1^{9}$
60.480.17-60.v.1.3 $60$ $2$ $2$ $17$ $5$ $1^{9}$
60.480.17-60.y.1.1 $60$ $2$ $2$ $17$ $6$ $1^{9}$
60.480.17-60.z.1.3 $60$ $2$ $2$ $17$ $3$ $1^{9}$
60.720.22-60.bp.1.9 $60$ $3$ $3$ $22$ $2$ $1^{14}$
60.720.25-60.br.1.2 $60$ $3$ $3$ $25$ $7$ $1^{17}$
60.960.29-60.fo.1.11 $60$ $4$ $4$ $29$ $5$ $1^{21}$
120.480.16-120.fe.1.28 $120$ $2$ $2$ $16$ $?$ not computed
120.480.16-120.fe.2.27 $120$ $2$ $2$ $16$ $?$ not computed
120.480.16-120.ff.1.20 $120$ $2$ $2$ $16$ $?$ not computed
120.480.16-120.ff.2.19 $120$ $2$ $2$ $16$ $?$ not computed
120.480.16-120.fi.1.21 $120$ $2$ $2$ $16$ $?$ not computed
120.480.16-120.fi.2.17 $120$ $2$ $2$ $16$ $?$ not computed
120.480.16-120.fj.1.19 $120$ $2$ $2$ $16$ $?$ not computed
120.480.16-120.fj.2.17 $120$ $2$ $2$ $16$ $?$ not computed
120.480.17-120.is.1.1 $120$ $2$ $2$ $17$ $?$ not computed
120.480.17-120.nz.1.1 $120$ $2$ $2$ $17$ $?$ not computed
120.480.17-120.bpq.1.1 $120$ $2$ $2$ $17$ $?$ not computed
120.480.17-120.bpt.1.1 $120$ $2$ $2$ $17$ $?$ not computed
120.480.17-120.bqc.1.1 $120$ $2$ $2$ $17$ $?$ not computed
120.480.17-120.bqf.1.1 $120$ $2$ $2$ $17$ $?$ not computed
120.480.17-120.bqo.1.1 $120$ $2$ $2$ $17$ $?$ not computed
120.480.17-120.bqr.1.1 $120$ $2$ $2$ $17$ $?$ not computed
120.480.18-120.i.1.2 $120$ $2$ $2$ $18$ $?$ not computed
120.480.18-120.i.2.6 $120$ $2$ $2$ $18$ $?$ not computed
120.480.18-120.j.1.2 $120$ $2$ $2$ $18$ $?$ not computed
120.480.18-120.j.2.4 $120$ $2$ $2$ $18$ $?$ not computed
120.480.18-120.m.1.5 $120$ $2$ $2$ $18$ $?$ not computed
120.480.18-120.m.2.7 $120$ $2$ $2$ $18$ $?$ not computed
120.480.18-120.n.1.1 $120$ $2$ $2$ $18$ $?$ not computed
120.480.18-120.n.2.3 $120$ $2$ $2$ $18$ $?$ not computed