| Curve name |
$X_{331}$ |
| Index |
$48$ |
| Level |
$16$ |
| Genus |
$1$ |
| Does the subgroup contain $-I$? |
Yes |
| Generating matrices |
$
\left[ \begin{matrix} 7 & 0 \\ 0 & 7 \end{matrix}\right],
\left[ \begin{matrix} 7 & 0 \\ 0 & 1 \end{matrix}\right],
\left[ \begin{matrix} 5 & 5 \\ 0 & 1 \end{matrix}\right],
\left[ \begin{matrix} 3 & 0 \\ 0 & 3 \end{matrix}\right]$ |
| Images in lower levels |
|
| Meaning/Special name |
|
| Chosen covering |
$X_{78}$ |
| Curves that $X_{331}$ minimally covers |
$X_{78}$, $X_{118}$, $X_{159}$ |
| Curves that minimally cover $X_{331}$ |
$X_{471}$, $X_{472}$, $X_{621}$, $X_{622}$ |
| Curves that minimally cover $X_{331}$ and have infinitely many rational
points. |
|
| Model |
A model was not computed. This curve is covered by $X_{159}$, which only has finitely many rational
points. |
| Info about rational points |
| Comments on finding rational points |
None |
| Elliptic curve whose $2$-adic image is the subgroup |
None |
| Generic density of odd order reductions |
N/A |