Properties

Label 280.504.13-14.b.1.1
Level $280$
Index $504$
Genus $13$
Cusps $18$
$\Q$-cusps $0$

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Invariants

Level: $280$ $\SL_2$-level: $28$ Newform level: $196$
Index: $504$ $\PSL_2$-index:$252$
Genus: $13 = 1 + \frac{ 252 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 18 }{2}$
Cusps: $18$ (none of which are rational) Cusp widths $14^{18}$ Cusp orbits $3^{6}$
Elliptic points: $0$ of order $2$ and $0$ of order $3$
Analytic rank: not computed
$\Q$-gonality: $6 \le \gamma \le 24$
$\overline{\Q}$-gonality: $6 \le \gamma \le 13$
Rational cusps: $0$
Rational CM points: none

Other labels

Cummins and Pauli (CP) label: 14A13

Level structure

$\GL_2(\Z/280\Z)$-generators: $\begin{bmatrix}27&196\\80&211\end{bmatrix}$, $\begin{bmatrix}87&132\\42&235\end{bmatrix}$, $\begin{bmatrix}167&124\\168&113\end{bmatrix}$, $\begin{bmatrix}193&82\\220&199\end{bmatrix}$, $\begin{bmatrix}197&192\\216&279\end{bmatrix}$, $\begin{bmatrix}207&40\\248&31\end{bmatrix}$, $\begin{bmatrix}207&84\\224&25\end{bmatrix}$
Contains $-I$: no $\quad$ (see 14.252.13.b.1 for the level structure with $-I$)
Cyclic 280-isogeny field degree: $96$
Cyclic 280-torsion field degree: $9216$
Full 280-torsion field degree: $2949120$

Models

Canonical model in $\mathbb{P}^{ 12 }$ defined by 55 equations

$ 0 $ $=$ $ 2 x y - 4 x w + 2 x u - x v + x r + 2 x s + x a - 2 x b - x c + 3 x d - 2 y^{2} - y z + 2 y w + \cdots + c^{2} $
$=$ $x^{2} - 2 x z - x v - x r + x s + 2 x a - x c + x d - y w - y t + y u + 2 y v + y r + 3 y a - y b + \cdots + c^{2}$
$=$ $2 x^{2} + 4 x y + 2 x z + x w - x t - x u + x r + 2 x a - x b + 2 x c + x d - 2 y^{2} + 2 y z + \cdots - c^{2}$
$=$ $2 x^{2} + x y + 2 x z - 2 x t - x u + x v + x r - 2 x s - 2 x a + x b + x c - 4 x d - y^{2} + y w + \cdots - d^{2}$
$=$$\cdots$
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Rational points

This modular curve has no $\Q_p$ points for $p=5,17$, and therefore no rational points.

Maps to other modular curves

Map of degree 3 from the canonical model of this modular curve to the canonical model of the modular curve 14.84.5.b.1 :

$\displaystyle X$ $=$ $\displaystyle d$
$\displaystyle Y$ $=$ $\displaystyle x-y+r-s$
$\displaystyle Z$ $=$ $\displaystyle z-w-u-s-a$
$\displaystyle W$ $=$ $\displaystyle -u-a-d$
$\displaystyle T$ $=$ $\displaystyle x+w+v+a-b+c$

Equation of the image curve:

$0$ $=$ $ Y^{2}+XZ-YZ-XW-YW+ZW-W^{2}+T^{2} $
$=$ $ X^{2}+2XY-Y^{2}-2XZ-YZ+Z^{2}-T^{2} $
$=$ $ 2X^{2}+2XY-Y^{2}+XZ-2YZ-Z^{2}+2T^{2} $

Modular covers

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

Factor curve Level Index Degree Genus Rank
7.42.1.b.1 $7$ $12$ $6$ $1$ $0$
40.12.0-2.a.1.1 $40$ $42$ $42$ $0$ $0$

This modular curve minimally covers the modular curves listed below.

Covered curve Level Index Degree Genus Rank
280.252.7-14.a.1.1 $280$ $2$ $2$ $7$ $?$
280.252.7-14.a.1.4 $280$ $2$ $2$ $7$ $?$