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} $ |
$=$ | $x^{2} - 2 x z - x v - x r + x s + 2 x a - x c + x d - y w - y t + y u + 2 y v + y r + 3 y a - y b + \cdots + c^{2}$ | |
$=$ | $2 x^{2} + 4 x y + 2 x z + x w - x t - x u + x r + 2 x a - x b + 2 x c + x d - 2 y^{2} + 2 y z + \cdots - c^{2}$ | |
$=$ | $2 x^{2} + x y + 2 x z - 2 x t - x u + x v + x r - 2 x s - 2 x a + x b + x c - 4 x d - y^{2} + y w + \cdots - d^{2}$ | |
$=$ | $\cdots$ |
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 | $280$ | $2$ | $2$ | $7$ | $?$ |