Invariants
Level: | $168$ | $\SL_2$-level: | $4$ | ||||
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 | $2^{2}\cdot4^{2}$ | 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: | 4E0 |
Level structure
$\GL_2(\Z/168\Z)$-generators: | $\begin{bmatrix}49&36\\44&91\end{bmatrix}$, $\begin{bmatrix}67&40\\30&77\end{bmatrix}$, $\begin{bmatrix}73&44\\66&29\end{bmatrix}$, $\begin{bmatrix}125&106\\152&123\end{bmatrix}$, $\begin{bmatrix}145&60\\116&5\end{bmatrix}$ |
Contains $-I$: | no $\quad$ (see 24.12.0.b.1 for the level structure with $-I$) |
Cyclic 168-isogeny field degree: | $128$ |
Cyclic 168-torsion field degree: | $6144$ |
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 642 stored non-cuspidal points.
Maps to other modular curves
$j$-invariant map of degree 12 to the modular curve $X(1)$ :
$\displaystyle j$ | $=$ | $\displaystyle \frac{2^6}{3^2}\cdot\frac{(3x+2y)^{12}(36x^{4}-6x^{2}y^{2}+y^{4})^{3}}{y^{4}x^{4}(3x+2y)^{12}(6x^{2}-y^{2})^{2}}$ |
Modular covers
This modular curve minimally covers the modular curves listed below.
Covered curve | Level | Index | Degree | Genus | Rank |
---|---|---|---|---|---|
28.12.0-2.a.1.1 | $28$ | $2$ | $2$ | $0$ | $0$ |
168.12.0-2.a.1.1 | $168$ | $2$ | $2$ | $0$ | $?$ |
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.c.1.1 | $168$ | $2$ | $2$ | $0$ |
168.48.0-24.c.1.4 | $168$ | $2$ | $2$ | $0$ |
168.48.0-24.d.1.2 | $168$ | $2$ | $2$ | $0$ |
168.48.0-24.d.1.3 | $168$ | $2$ | $2$ | $0$ |
168.48.0-24.e.1.3 | $168$ | $2$ | $2$ | $0$ |
168.48.0-24.e.1.11 | $168$ | $2$ | $2$ | $0$ |
168.48.0-24.f.1.4 | $168$ | $2$ | $2$ | $0$ |
168.48.0-24.f.1.5 | $168$ | $2$ | $2$ | $0$ |
168.48.0-168.o.1.6 | $168$ | $2$ | $2$ | $0$ |
168.48.0-168.o.1.15 | $168$ | $2$ | $2$ | $0$ |
168.48.0-168.p.1.9 | $168$ | $2$ | $2$ | $0$ |
168.48.0-168.p.1.15 | $168$ | $2$ | $2$ | $0$ |
168.48.0-168.r.1.7 | $168$ | $2$ | $2$ | $0$ |
168.48.0-168.r.1.11 | $168$ | $2$ | $2$ | $0$ |
168.48.0-168.s.1.5 | $168$ | $2$ | $2$ | $0$ |
168.48.0-168.s.1.14 | $168$ | $2$ | $2$ | $0$ |
168.72.2-24.d.1.2 | $168$ | $3$ | $3$ | $2$ |
168.96.1-24.bz.1.2 | $168$ | $4$ | $4$ | $1$ |
168.192.5-168.n.1.5 | $168$ | $8$ | $8$ | $5$ |
168.504.16-168.b.1.8 | $168$ | $21$ | $21$ | $16$ |