Curve name | $X_{326}$ | ||||||||||||
Index | $48$ | ||||||||||||
Level | $16$ | ||||||||||||
Genus | $1$ | ||||||||||||
Does the subgroup contain $-I$? | Yes | ||||||||||||
Generating matrices | $ \left[ \begin{matrix} 15 & 13 \\ 4 & 1 \end{matrix}\right], \left[ \begin{matrix} 1 & 2 \\ 2 & 3 \end{matrix}\right], \left[ \begin{matrix} 13 & 10 \\ 4 & 1 \end{matrix}\right]$ | ||||||||||||
Images in lower levels |
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Meaning/Special name | |||||||||||||
Chosen covering | $X_{70}$ | ||||||||||||
Curves that $X_{326}$ minimally covers | $X_{70}$, $X_{112}$, $X_{153}$ | ||||||||||||
Curves that minimally cover $X_{326}$ | |||||||||||||
Curves that minimally cover $X_{326}$ and have infinitely many rational points. | |||||||||||||
Model | \[y^2 = x^3 + x^2 - 13x - 21\] | ||||||||||||
Info about rational points | $X_{326}(\mathbb{Q}) \cong \mathbb{Z}/2\mathbb{Z} \times\mathbb{Z}$ | ||||||||||||
Comments on finding rational points | None | ||||||||||||
Elliptic curve whose $2$-adic image is the subgroup | $y^2 = x^3 - x^2 - 7802175025x + 272281984973281$, with conductor $30631008$ | ||||||||||||
Generic density of odd order reductions | $42979/172032$ |