Invariants
Level: | $48$ | $\SL_2$-level: | $16$ | Newform level: | $288$ | ||
Index: | $96$ | $\PSL_2$-index: | $48$ | ||||
Genus: | $1 = 1 + \frac{ 48 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 8 }{2}$ | ||||||
Cusps: | $8$ (none of which are rational) | Cusp widths | $2^{4}\cdot4^{2}\cdot16^{2}$ | Cusp orbits | $2^{4}$ | ||
Elliptic points: | $0$ of order $2$ and $0$ of order $3$ | ||||||
Analytic rank: | $0$ | ||||||
$\Q$-gonality: | $2$ | ||||||
$\overline{\Q}$-gonality: | $2$ | ||||||
Rational cusps: | $0$ | ||||||
Rational CM points: | none |
Other labels
Cummins and Pauli (CP) label: | 16E1 |
Rouse, Sutherland, and Zureick-Brown (RSZB) label: | 48.96.1.642 |
Level structure
$\GL_2(\Z/48\Z)$-generators: | $\begin{bmatrix}15&7\\28&39\end{bmatrix}$, $\begin{bmatrix}29&4\\0&19\end{bmatrix}$, $\begin{bmatrix}43&7\\12&1\end{bmatrix}$ |
Contains $-I$: | no $\quad$ (see 48.48.1.cq.1 for the level structure with $-I$) |
Cyclic 48-isogeny field degree: | $8$ |
Cyclic 48-torsion field degree: | $64$ |
Full 48-torsion field degree: | $12288$ |
Jacobian
Conductor: | $2^{5}\cdot3^{2}$ |
Simple: | yes |
Squarefree: | yes |
Decomposition: | $1$ |
Newforms: | 288.2.a.d |
Models
Embedded model Embedded model in $\mathbb{P}^{3}$
$ 0 $ | $=$ | $ 2 x w + z^{2} $ |
$=$ | $48 x^{2} - y^{2} + 3 w^{2}$ |
Singular plane model Singular plane model
$ 0 $ | $=$ | $ 4 x^{4} - 3 y^{2} z^{2} + z^{4} $ |
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 48 from the embedded model of this modular curve to the modular curve $X(1)$ :
$\displaystyle j$ | $=$ | $\displaystyle \frac{2^4}{3}\cdot\frac{(y^{4}+42y^{2}w^{2}+9w^{4})^{3}}{w^{2}y^{2}(y^{2}-3w^{2})^{4}}$ |
Map of degree 1 from the embedded model of this modular curve to the plane model of the modular curve 48.48.1.cq.1 :
$\displaystyle X$ | $=$ | $\displaystyle z$ |
$\displaystyle Y$ | $=$ | $\displaystyle \frac{1}{3}y$ |
$\displaystyle Z$ | $=$ | $\displaystyle w$ |
Equation of the image curve:
$0$ | $=$ | $ 4X^{4}-3Y^{2}Z^{2}+Z^{4} $ |
Modular covers
This modular curve minimally covers the modular curves listed below.
Covered curve | Level | Index | Degree | Genus | Rank | Kernel decomposition |
---|---|---|---|---|---|---|
16.48.0-16.i.1.1 | $16$ | $2$ | $2$ | $0$ | $0$ | full Jacobian |
24.48.0-24.bs.1.4 | $24$ | $2$ | $2$ | $0$ | $0$ | full Jacobian |
48.48.0-16.i.1.1 | $48$ | $2$ | $2$ | $0$ | $0$ | full Jacobian |
48.48.0-24.bs.1.1 | $48$ | $2$ | $2$ | $0$ | $0$ | full Jacobian |
48.48.1-48.d.1.6 | $48$ | $2$ | $2$ | $1$ | $0$ | dimension zero |
48.48.1-48.d.1.13 | $48$ | $2$ | $2$ | $1$ | $0$ | dimension zero |
This modular curve is minimally covered by the modular curves in the database listed below.
Covering curve | Level | Index | Degree | Genus | Rank | Kernel decomposition |
---|---|---|---|---|---|---|
48.288.9-48.me.1.1 | $48$ | $3$ | $3$ | $9$ | $1$ | $1^{8}$ |
48.384.9-48.bgv.1.1 | $48$ | $4$ | $4$ | $9$ | $1$ | $1^{8}$ |
240.480.17-240.hm.1.2 | $240$ | $5$ | $5$ | $17$ | $?$ | not computed |