Canonical model in $\mathbb{P}^{ 4 }$ defined by 3 equations
$ 0 $ | $=$ | $ x^{2} + 3 x y + x z + z^{2} $ |
| $=$ | $x^{2} + 3 x y - 4 x z + 5 y^{2} - 4 z^{2} + w^{2} + t^{2}$ |
| $=$ | $3 x^{2} - 6 x y + 8 x z + 10 y^{2} + 8 z^{2} - w^{2} - 2 t^{2}$ |
Singular plane model Singular plane model
$ 0 $ | $=$ | $ 13125 x^{8} + 1500 x^{7} y + 325 x^{6} y^{2} - 22500 x^{6} z^{2} + 10 x^{5} y^{3} - 3150 x^{5} y z^{2} + \cdots + 37746 z^{8} $ |
This modular curve has no real points, and therefore no rational points.
Maps between models of this curve
Birational map from canonical model to plane model:
$\displaystyle X$ |
$=$ |
$\displaystyle x-y$ |
$\displaystyle Y$ |
$=$ |
$\displaystyle 5z+5w$ |
$\displaystyle Z$ |
$=$ |
$\displaystyle \frac{1}{3}t$ |
Maps to other modular curves
$j$-invariant map
of degree 144 from the canonical model of this modular curve to the modular curve
$X(1)$
:
$\displaystyle j$ |
$=$ |
$\displaystyle -3^3\,\frac{56949480xzw^{16}+265764240xzw^{14}t^{2}+392027040xzw^{12}t^{4}+23950080xzw^{10}t^{6}-495590400xzw^{8}t^{8}-492549120xzw^{6}t^{10}-175196160xzw^{4}t^{12}-15298560xzw^{2}t^{14}+1351680xzt^{16}+56949480z^{2}w^{16}+265764240z^{2}w^{14}t^{2}+392027040z^{2}w^{12}t^{4}+23950080z^{2}w^{10}t^{6}-495590400z^{2}w^{8}t^{8}-492549120z^{2}w^{6}t^{10}-175196160z^{2}w^{4}t^{12}-15298560z^{2}w^{2}t^{14}+1351680z^{2}t^{16}-9111771w^{18}-55430244w^{16}t^{2}-124217712w^{14}t^{4}-99395856w^{12}t^{6}+60317568w^{10}t^{8}+178354944w^{8}t^{10}+135370496w^{6}t^{12}+43219968w^{4}t^{14}+4153344w^{2}t^{16}-192512t^{18}}{t^{4}(3w^{2}+4t^{2})(3645xzw^{10}+12150xzw^{8}t^{2}+4050xzw^{6}t^{4}-24300xzw^{4}t^{6}-27000xzw^{2}t^{8}-5280xzt^{10}+3645z^{2}w^{10}+12150z^{2}w^{8}t^{2}+4050z^{2}w^{6}t^{4}-24300z^{2}w^{4}t^{6}-27000z^{2}w^{2}t^{8}-5280z^{2}t^{10}-729w^{12}-3159w^{10}t^{2}-3159w^{8}t^{4}+4374w^{6}t^{6}+10611w^{4}t^{8}+6360w^{2}t^{10}+752t^{12})}$ |
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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.