Invariants
Level: | $168$ | $\SL_2$-level: | $8$ | ||||
Index: | $24$ | $\PSL_2$-index: | $12$ | ||||
Genus: | $0 = 1 + \frac{ 12 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 4 }{2}$ | ||||||
Cusps: | $4$ (of which $2$ are rational) | Cusp widths | $1^{2}\cdot2\cdot8$ | Cusp orbits | $1^{2}\cdot2$ | ||
Elliptic points: | $0$ of order $2$ and $0$ of order $3$ | ||||||
$\Q$-gonality: | $1$ | ||||||
$\overline{\Q}$-gonality: | $1$ | ||||||
Rational cusps: | $2$ | ||||||
Rational CM points: | none |
Other labels
Cummins and Pauli (CP) label: | 8C0 |
Level structure
$\GL_2(\Z/168\Z)$-generators: | $\begin{bmatrix}70&79\\57&100\end{bmatrix}$, $\begin{bmatrix}71&146\\134&39\end{bmatrix}$, $\begin{bmatrix}90&161\\47&48\end{bmatrix}$, $\begin{bmatrix}139&156\\140&167\end{bmatrix}$, $\begin{bmatrix}157&72\\162&79\end{bmatrix}$ |
Contains $-I$: | no $\quad$ (see 24.12.0.ba.1 for the level structure with $-I$) |
Cyclic 168-isogeny field degree: | $64$ |
Cyclic 168-torsion field degree: | $3072$ |
Full 168-torsion field degree: | $6193152$ |
Models
This modular curve is isomorphic to $\mathbb{P}^1$.
Rational points
This modular curve has infinitely many rational points, including 1542 stored non-cuspidal points.
Maps to other modular curves
$j$-invariant map of degree 12 to the modular curve $X(1)$ :
$\displaystyle j$ | $=$ | $\displaystyle \frac{1}{2^8\cdot3}\cdot\frac{(3x+y)^{12}(9x^{4}-192x^{2}y^{2}+256y^{4})^{3}}{y^{8}x^{2}(3x+y)^{12}(3x^{2}-64y^{2})}$ |
Modular covers
This modular curve minimally covers the modular curves listed below.
Covered curve | Level | Index | Degree | Genus | Rank |
---|---|---|---|---|---|
56.12.0-4.c.1.2 | $56$ | $2$ | $2$ | $0$ | $0$ |
168.12.0-4.c.1.6 | $168$ | $2$ | $2$ | $0$ | $?$ |
This modular curve is minimally covered by the modular curves in the database listed below.
Covering curve | Level | Index | Degree | Genus |
---|---|---|---|---|
168.48.0-24.m.1.12 | $168$ | $2$ | $2$ | $0$ |
168.48.0-24.n.1.6 | $168$ | $2$ | $2$ | $0$ |
168.48.0-24.bc.1.3 | $168$ | $2$ | $2$ | $0$ |
168.48.0-24.be.1.8 | $168$ | $2$ | $2$ | $0$ |
168.48.0-24.bh.1.8 | $168$ | $2$ | $2$ | $0$ |
168.48.0-24.bi.1.3 | $168$ | $2$ | $2$ | $0$ |
168.48.0-24.bs.1.3 | $168$ | $2$ | $2$ | $0$ |
168.48.0-24.bv.1.4 | $168$ | $2$ | $2$ | $0$ |
168.48.0-168.co.1.7 | $168$ | $2$ | $2$ | $0$ |
168.48.0-168.cq.1.8 | $168$ | $2$ | $2$ | $0$ |
168.48.0-168.cs.1.7 | $168$ | $2$ | $2$ | $0$ |
168.48.0-168.cu.1.4 | $168$ | $2$ | $2$ | $0$ |
168.48.0-168.dm.1.5 | $168$ | $2$ | $2$ | $0$ |
168.48.0-168.do.1.12 | $168$ | $2$ | $2$ | $0$ |
168.48.0-168.du.1.9 | $168$ | $2$ | $2$ | $0$ |
168.48.0-168.dw.1.9 | $168$ | $2$ | $2$ | $0$ |
168.72.2-24.cu.1.11 | $168$ | $3$ | $3$ | $2$ |
168.96.1-24.iu.1.2 | $168$ | $4$ | $4$ | $1$ |
168.192.5-168.gc.1.9 | $168$ | $8$ | $8$ | $5$ |
168.504.16-168.di.1.34 | $168$ | $21$ | $21$ | $16$ |