$\GL_2(\Z/16\Z)$-generators: |
$\begin{bmatrix}1&11\\0&13\end{bmatrix}$, $\begin{bmatrix}9&10\\0&3\end{bmatrix}$, $\begin{bmatrix}15&0\\0&5\end{bmatrix}$, $\begin{bmatrix}15&12\\0&7\end{bmatrix}$ |
$\GL_2(\Z/16\Z)$-subgroup: |
$\OD_{32}:C_2^3$ |
Contains $-I$: |
yes |
Quadratic refinements: |
16.192.1-16.g.2.1, 16.192.1-16.g.2.2, 16.192.1-16.g.2.3, 16.192.1-16.g.2.4, 16.192.1-16.g.2.5, 16.192.1-16.g.2.6, 32.192.1-16.g.2.1, 32.192.1-16.g.2.2, 32.192.1-16.g.2.3, 32.192.1-16.g.2.4, 48.192.1-16.g.2.1, 48.192.1-16.g.2.2, 48.192.1-16.g.2.3, 48.192.1-16.g.2.4, 48.192.1-16.g.2.5, 48.192.1-16.g.2.6, 80.192.1-16.g.2.1, 80.192.1-16.g.2.2, 80.192.1-16.g.2.3, 80.192.1-16.g.2.4, 80.192.1-16.g.2.5, 80.192.1-16.g.2.6, 96.192.1-16.g.2.1, 96.192.1-16.g.2.2, 96.192.1-16.g.2.3, 96.192.1-16.g.2.4, 112.192.1-16.g.2.1, 112.192.1-16.g.2.2, 112.192.1-16.g.2.3, 112.192.1-16.g.2.4, 112.192.1-16.g.2.5, 112.192.1-16.g.2.6, 160.192.1-16.g.2.1, 160.192.1-16.g.2.2, 160.192.1-16.g.2.3, 160.192.1-16.g.2.4, 176.192.1-16.g.2.1, 176.192.1-16.g.2.2, 176.192.1-16.g.2.3, 176.192.1-16.g.2.4, 176.192.1-16.g.2.5, 176.192.1-16.g.2.6, 208.192.1-16.g.2.1, 208.192.1-16.g.2.2, 208.192.1-16.g.2.3, 208.192.1-16.g.2.4, 208.192.1-16.g.2.5, 208.192.1-16.g.2.6, 224.192.1-16.g.2.1, 224.192.1-16.g.2.2, 224.192.1-16.g.2.3, 224.192.1-16.g.2.4, 240.192.1-16.g.2.1, 240.192.1-16.g.2.2, 240.192.1-16.g.2.3, 240.192.1-16.g.2.4, 240.192.1-16.g.2.5, 240.192.1-16.g.2.6, 272.192.1-16.g.2.1, 272.192.1-16.g.2.2, 272.192.1-16.g.2.3, 272.192.1-16.g.2.4, 272.192.1-16.g.2.5, 272.192.1-16.g.2.6, 304.192.1-16.g.2.1, 304.192.1-16.g.2.2, 304.192.1-16.g.2.3, 304.192.1-16.g.2.4, 304.192.1-16.g.2.5, 304.192.1-16.g.2.6 |
Cyclic 16-isogeny field degree: |
$1$ |
Cyclic 16-torsion field degree: |
$4$ |
Full 16-torsion field degree: |
$256$ |
Embedded model Embedded model in $\mathbb{P}^{3}$
$ 0 $ | $=$ | $ x^{2} + 2 y^{2} - 4 y z - 2 z^{2} $ |
| $=$ | $2 y z - 5 z^{2} + w^{2}$ |
Singular plane model Singular plane model
$ 0 $ | $=$ | $ x^{4} + 2 x^{2} y^{2} - 6 x^{2} z^{2} + z^{4} $ |
This modular curve has real points and $\Q_p$ points for $p$ not dividing the level, but no known rational points.
Maps between models of this curve
Birational map from embedded model to plane model:
$\displaystyle X$ |
$=$ |
$\displaystyle z$ |
$\displaystyle Y$ |
$=$ |
$\displaystyle x$ |
$\displaystyle Z$ |
$=$ |
$\displaystyle w$ |
Maps to other modular curves
$j$-invariant map
of degree 96 from the embedded model of this modular curve to the modular curve
$X(1)$
:
$\displaystyle j$ |
$=$ |
$\displaystyle \frac{524288y^{24}+12582912y^{22}w^{2}+127401984y^{20}w^{4}+707264512y^{18}w^{6}+2341502976y^{16}w^{8}+4707287040y^{14}w^{10}+5592604672y^{12}w^{12}+3618852864y^{10}w^{14}+1050320640y^{8}w^{16}+65601920y^{6}w^{18}-6828768y^{4}w^{20}+188592y^{2}w^{22}-1862645149230957z^{24}+1788139343261718z^{22}w^{2}-679492950439446z^{20}w^{4}+126838684081998z^{18}w^{6}-11072158813404z^{16}w^{8}+160217285130z^{14}w^{10}+43304443182z^{12}w^{12}-2658691134z^{10}w^{14}-17761185z^{8}w^{16}+7929180z^{6}w^{18}-285948z^{4}w^{20}-7092z^{2}w^{22}-4426w^{24}}{w^{16}(8y^{8}+64y^{6}w^{2}+136y^{4}w^{4}+56y^{2}w^{6}-12207z^{8}+3906z^{6}w^{2}-234z^{4}w^{4}-6z^{2}w^{6}-3w^{8})}$ |
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.