Properties

Label 168.144.3-24.bb.1.7
Level $168$
Index $144$
Genus $3$
Cusps $8$
$\Q$-cusps $0$

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Invariants

Level: $168$ $\SL_2$-level: $12$ Newform level: $576$
Index: $144$ $\PSL_2$-index:$72$
Genus: $3 = 1 + \frac{ 72 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 8 }{2}$
Cusps: $8$ (none of which are rational) Cusp widths $6^{4}\cdot12^{4}$ Cusp orbits $2^{2}\cdot4$
Elliptic points: $0$ of order $2$ and $0$ of order $3$
Analytic rank: not computed
$\Q$-gonality: $2 \le \gamma \le 4$
$\overline{\Q}$-gonality: $2 \le \gamma \le 3$
Rational cusps: $0$
Rational CM points: none

Other labels

Cummins and Pauli (CP) label: 12G3

Level structure

$\GL_2(\Z/168\Z)$-generators: $\begin{bmatrix}25&76\\148&21\end{bmatrix}$, $\begin{bmatrix}33&122\\16&69\end{bmatrix}$, $\begin{bmatrix}39&152\\8&43\end{bmatrix}$, $\begin{bmatrix}63&116\\142&165\end{bmatrix}$, $\begin{bmatrix}79&88\\70&69\end{bmatrix}$, $\begin{bmatrix}167&54\\4&151\end{bmatrix}$
Contains $-I$: no $\quad$ (see 24.72.3.bb.1 for the level structure with $-I$)
Cyclic 168-isogeny field degree: $128$
Cyclic 168-torsion field degree: $6144$
Full 168-torsion field degree: $1032192$

Models

Embedded model Embedded model in $\mathbb{P}^{5}$

$ 0 $ $=$ $ 2 x^{2} - x y + w t + w u + t^{2} + u^{2} $
$=$ $x y - 2 y^{2} + w^{2} + w t + w u + t^{2} + u^{2}$
$=$ $2 x^{2} + 2 x y + t^{2} - 2 t u + u^{2}$
$=$ $x w + x t + x u - 2 z t + 2 z u$
$=$$\cdots$
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Singular plane model Singular plane model

$ 0 $ $=$ $ 8 x^{6} y^{2} - 4 x^{6} z^{2} + 8 x^{5} y^{2} z + 4 x^{5} z^{3} - 4 x^{4} y^{4} + 4 x^{4} y^{2} z^{2} + \cdots - 4 z^{8} $
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Weierstrass model Weierstrass model

$ y^{2} $ $=$ $ 6x^{8} + 80x^{4} + 96 $
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Rational points

This modular curve has real points and $\Q_p$ points for $p$ not dividing the level, but no known rational points.

Maps to other modular curves

$j$-invariant map of degree 72 from the embedded model of this modular curve to the modular curve $X(1)$ :

$\displaystyle j$ $=$ $\displaystyle -2^3\cdot3^3\,\frac{98171xt^{8}-597432xt^{7}u+2256116xt^{6}u^{2}-6442248xt^{5}u^{3}+14711106xt^{4}u^{4}-27097224xt^{3}u^{5}+36936884xt^{2}u^{6}-21252408xtu^{7}+24383771xu^{8}+192yw^{8}-3072yw^{6}u^{2}-12288yw^{5}u^{3}-67584yw^{4}u^{4}-491520yw^{3}u^{5}-3843072yw^{2}u^{6}-31862784ywu^{7}-152732yt^{8}+1080720yt^{7}u-4311616yt^{6}u^{2}+12656784yt^{5}u^{3}-29493720yt^{4}u^{4}+55403568yt^{3}u^{5}-79417120yt^{2}u^{6}+54129072ytu^{7}-38347820yu^{8}-322496zt^{8}+1837440zt^{7}u-6229824zt^{6}u^{2}+15752064zt^{5}u^{3}-30969024zt^{4}u^{4}+45637248zt^{3}u^{5}-37015488zt^{2}u^{6}-32297856ztu^{7}+43607936zu^{8}}{5xt^{8}+6xt^{7}u-4xt^{6}u^{2}+18xt^{5}u^{3}-18xt^{4}u^{4}+18xt^{3}u^{5}-4xt^{2}u^{6}+6xtu^{7}+5xu^{8}-8yt^{8}+8yt^{6}u^{2}+8yt^{2}u^{6}-8yu^{8}-14zt^{8}-36zt^{7}u+36zt^{6}u^{2}-36zt^{5}u^{3}+36zt^{3}u^{5}-36zt^{2}u^{6}+36ztu^{7}+14zu^{8}}$

Map of degree 1 from the embedded model of this modular curve to the plane model of the modular curve 24.72.3.bb.1 :

$\displaystyle X$ $=$ $\displaystyle y$
$\displaystyle Y$ $=$ $\displaystyle u$
$\displaystyle Z$ $=$ $\displaystyle 2z$

Equation of the image curve:

$0$ $=$ $ 8X^{6}Y^{2}-4X^{4}Y^{4}+8X^{5}Y^{2}Z-4X^{6}Z^{2}+4X^{4}Y^{2}Z^{2}+4X^{5}Z^{3}-8X^{3}Y^{2}Z^{3}+7X^{4}Z^{4}+4X^{3}Z^{5}-8X^{2}Z^{6}-8XZ^{7}-4Z^{8} $

Map of degree 1 from the embedded model of this modular curve to the Weierstrass model of the modular curve 24.72.3.bb.1 :

$\displaystyle X$ $=$ $\displaystyle y^{5}z+3y^{4}z^{2}-4y^{3}z^{3}-28y^{2}z^{4}-48yz^{5}-32z^{6}$
$\displaystyle Y$ $=$ $\displaystyle -4y^{20}z^{3}u-40y^{19}z^{4}u-108y^{18}z^{5}u+2y^{18}z^{3}u^{3}+364y^{17}z^{6}u+18y^{17}z^{4}u^{3}+3280y^{16}z^{7}u+30y^{16}z^{5}u^{3}+7932y^{15}z^{8}u-258y^{15}z^{6}u^{3}-4784y^{14}z^{9}u-1416y^{14}z^{7}u^{3}-79280y^{13}z^{10}u-1800y^{13}z^{8}u^{3}-211584y^{12}z^{11}u+7168y^{12}z^{9}u^{3}-189120y^{11}z^{12}u+34272y^{11}z^{10}u^{3}+398592y^{10}z^{13}u+54144y^{10}z^{11}u^{3}+1711872y^{9}z^{14}u-19328y^{9}z^{12}u^{3}+3264512y^{8}z^{15}u-262656y^{8}z^{13}u^{3}+4517888y^{7}z^{16}u-592896y^{7}z^{14}u^{3}+5849088y^{6}z^{17}u-761856y^{6}z^{15}u^{3}+7798784y^{5}z^{18}u-614400y^{5}z^{16}u^{3}+9175040y^{4}z^{19}u-294912y^{4}z^{17}u^{3}+7864320y^{3}z^{20}u-65536y^{3}z^{18}u^{3}+4194304y^{2}z^{21}u+1048576yz^{22}u$
$\displaystyle Z$ $=$ $\displaystyle -\frac{1}{2}y^{5}u-\frac{3}{2}y^{4}zu-\frac{1}{2}y^{3}z^{2}u+\frac{1}{4}y^{3}u^{3}+6y^{2}z^{3}u+4yz^{4}u$

Modular covers

This modular curve minimally covers the modular curves listed below.

Covered curve Level Index Degree Genus Rank
84.72.2-12.a.1.8 $84$ $2$ $2$ $2$ $?$
168.72.1-24.d.1.1 $168$ $2$ $2$ $1$ $?$
168.72.1-24.d.1.8 $168$ $2$ $2$ $1$ $?$
168.72.2-12.a.1.3 $168$ $2$ $2$ $2$ $?$
168.72.2-24.e.1.10 $168$ $2$ $2$ $2$ $?$
168.72.2-24.e.1.15 $168$ $2$ $2$ $2$ $?$

This modular curve is minimally covered by the modular curves in the database listed below.

Covering curve Level Index Degree Genus
168.288.7-24.b.1.1 $168$ $2$ $2$ $7$
168.288.7-24.i.1.4 $168$ $2$ $2$ $7$
168.288.7-24.w.1.2 $168$ $2$ $2$ $7$
168.288.7-24.z.1.5 $168$ $2$ $2$ $7$
168.288.7-24.cx.1.7 $168$ $2$ $2$ $7$
168.288.7-24.da.1.5 $168$ $2$ $2$ $7$
168.288.7-24.dt.1.4 $168$ $2$ $2$ $7$
168.288.7-24.dw.1.5 $168$ $2$ $2$ $7$
168.288.7-24.fv.1.6 $168$ $2$ $2$ $7$
168.288.7-24.fy.1.6 $168$ $2$ $2$ $7$
168.288.7-24.ib.1.8 $168$ $2$ $2$ $7$
168.288.7-24.ie.1.8 $168$ $2$ $2$ $7$
168.288.7-168.ja.1.5 $168$ $2$ $2$ $7$
168.288.7-168.jd.1.7 $168$ $2$ $2$ $7$
168.288.7-168.jr.1.1 $168$ $2$ $2$ $7$
168.288.7-168.ju.1.7 $168$ $2$ $2$ $7$
168.288.7-168.km.1.14 $168$ $2$ $2$ $7$
168.288.7-168.kp.1.10 $168$ $2$ $2$ $7$
168.288.7-168.ld.1.7 $168$ $2$ $2$ $7$
168.288.7-168.lg.1.5 $168$ $2$ $2$ $7$
168.288.7-168.bea.1.16 $168$ $2$ $2$ $7$
168.288.7-168.bec.1.15 $168$ $2$ $2$ $7$
168.288.7-168.bfn.1.15 $168$ $2$ $2$ $7$
168.288.7-168.bfp.1.16 $168$ $2$ $2$ $7$
168.288.9-24.bl.1.6 $168$ $2$ $2$ $9$
168.288.9-24.bq.1.6 $168$ $2$ $2$ $9$
168.288.9-24.hs.1.8 $168$ $2$ $2$ $9$
168.288.9-24.hv.1.8 $168$ $2$ $2$ $9$
168.288.9-168.ov.1.15 $168$ $2$ $2$ $9$
168.288.9-168.ox.1.16 $168$ $2$ $2$ $9$
168.288.9-168.qj.1.16 $168$ $2$ $2$ $9$
168.288.9-168.ql.1.15 $168$ $2$ $2$ $9$