$\GL_2(\Z/48\Z)$-generators: |
$\begin{bmatrix}7&8\\32&15\end{bmatrix}$, $\begin{bmatrix}11&42\\28&29\end{bmatrix}$, $\begin{bmatrix}23&32\\24&23\end{bmatrix}$, $\begin{bmatrix}35&8\\4&47\end{bmatrix}$, $\begin{bmatrix}47&14\\8&45\end{bmatrix}$ |
Contains $-I$: |
yes |
Quadratic refinements: |
48.384.5-48.bl.2.1, 48.384.5-48.bl.2.2, 48.384.5-48.bl.2.3, 48.384.5-48.bl.2.4, 48.384.5-48.bl.2.5, 48.384.5-48.bl.2.6, 48.384.5-48.bl.2.7, 48.384.5-48.bl.2.8, 48.384.5-48.bl.2.9, 48.384.5-48.bl.2.10, 48.384.5-48.bl.2.11, 48.384.5-48.bl.2.12, 48.384.5-48.bl.2.13, 48.384.5-48.bl.2.14, 48.384.5-48.bl.2.15, 48.384.5-48.bl.2.16, 240.384.5-48.bl.2.1, 240.384.5-48.bl.2.2, 240.384.5-48.bl.2.3, 240.384.5-48.bl.2.4, 240.384.5-48.bl.2.5, 240.384.5-48.bl.2.6, 240.384.5-48.bl.2.7, 240.384.5-48.bl.2.8, 240.384.5-48.bl.2.9, 240.384.5-48.bl.2.10, 240.384.5-48.bl.2.11, 240.384.5-48.bl.2.12, 240.384.5-48.bl.2.13, 240.384.5-48.bl.2.14, 240.384.5-48.bl.2.15, 240.384.5-48.bl.2.16 |
Cyclic 48-isogeny field degree: |
$16$ |
Cyclic 48-torsion field degree: |
$128$ |
Full 48-torsion field degree: |
$6144$ |
Canonical model in $\mathbb{P}^{ 4 }$ defined by 3 equations
$ 0 $ | $=$ | $ y w + z t $ |
| $=$ | $ - 2 y t + z^{2} - w^{2}$ |
| $=$ | $12 x^{2} - y^{2} - z^{2} - w^{2} - t^{2}$ |
Singular plane model Singular plane model
$ 0 $ | $=$ | $ 36 x^{4} z^{4} - 12 x^{2} y^{6} - 12 x^{2} y^{4} z^{2} - 12 x^{2} y^{2} z^{4} - 12 x^{2} z^{6} + \cdots + z^{8} $ |
This modular curve has no $\Q_p$ points for $p=31$, and therefore no rational points.
Maps between models of this curve
Birational map from canonical model to plane model:
$\displaystyle X$ |
$=$ |
$\displaystyle x$ |
$\displaystyle Y$ |
$=$ |
$\displaystyle y$ |
$\displaystyle Z$ |
$=$ |
$\displaystyle z$ |
Maps to other modular curves
$j$-invariant map
of degree 192 from the canonical model of this modular curve to the modular curve
$X(1)$
:
$\displaystyle j$ |
$=$ |
$\displaystyle \frac{y^{24}-12y^{22}t^{2}+738y^{20}t^{4}-5596y^{18}t^{6}+170607y^{16}t^{8}-643608y^{14}t^{10}+12539228y^{12}t^{12}-643608y^{10}t^{14}+38902383y^{8}t^{16}+154921508y^{6}t^{18}+431358690y^{4}t^{20}+1126957044y^{2}t^{22}-49152zw^{21}t^{2}-1146880zw^{17}t^{6}-9404416zw^{13}t^{10}-67043328zw^{9}t^{14}-358301696zw^{5}t^{18}-1478918144zwt^{22}+4096w^{24}+245760w^{20}t^{4}+2465792w^{16}t^{8}+17661952w^{12}t^{12}+108195840w^{8}t^{16}+457719808w^{4}t^{20}+t^{24}}{t^{4}(y^{20}-8y^{18}t^{2}-36y^{16}t^{4}+200y^{14}t^{6}+1222y^{12}t^{8}+200y^{10}t^{10}-16420y^{8}t^{12}-65544y^{6}t^{14}-98303y^{4}t^{16}+196608y^{2}t^{18}-3072zw^{13}t^{6}-71680zw^{9}t^{10}-446464zw^{5}t^{14}-892928zwt^{18}+256w^{16}t^{4}+15360w^{12}t^{8}+142336w^{8}t^{12}+397312w^{4}t^{16})}$ |
Hi
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Cover information
Click on a modular curve in the diagram to see information about it.
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This modular curve minimally covers the modular curves listed below.
This modular curve is minimally covered by the modular curves in the database listed below.