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Properties

Label 48.48.1.u.1
Level $48$
Index $48$
Genus $1$
Analytic rank $0$
Cusps $8$
$\Q$-cusps $0$

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Invariants

Level: $48$ $\SL_2$-level: $16$ Newform level: $64$
Index: $48$ $\PSL_2$-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: 48.48.1.418

Level structure

$\GL_2(\Z/48\Z)$-generators: $\begin{bmatrix}9&22\\8&33\end{bmatrix}$, $\begin{bmatrix}19&30\\20&29\end{bmatrix}$, $\begin{bmatrix}27&19\\28&31\end{bmatrix}$, $\begin{bmatrix}29&9\\4&1\end{bmatrix}$, $\begin{bmatrix}29&43\\40&31\end{bmatrix}$
Contains $-I$: yes
Quadratic refinements: 48.96.1-48.u.1.1, 48.96.1-48.u.1.2, 48.96.1-48.u.1.3, 48.96.1-48.u.1.4, 48.96.1-48.u.1.5, 48.96.1-48.u.1.6, 48.96.1-48.u.1.7, 48.96.1-48.u.1.8, 48.96.1-48.u.1.9, 48.96.1-48.u.1.10, 48.96.1-48.u.1.11, 48.96.1-48.u.1.12, 48.96.1-48.u.1.13, 48.96.1-48.u.1.14, 48.96.1-48.u.1.15, 48.96.1-48.u.1.16, 240.96.1-48.u.1.1, 240.96.1-48.u.1.2, 240.96.1-48.u.1.3, 240.96.1-48.u.1.4, 240.96.1-48.u.1.5, 240.96.1-48.u.1.6, 240.96.1-48.u.1.7, 240.96.1-48.u.1.8, 240.96.1-48.u.1.9, 240.96.1-48.u.1.10, 240.96.1-48.u.1.11, 240.96.1-48.u.1.12, 240.96.1-48.u.1.13, 240.96.1-48.u.1.14, 240.96.1-48.u.1.15, 240.96.1-48.u.1.16
Cyclic 48-isogeny field degree: $8$
Cyclic 48-torsion field degree: $128$
Full 48-torsion field degree: $24576$

Jacobian

Conductor: $2^{6}$
Simple: yes
Squarefree: yes
Decomposition: $1$
Newforms: 64.2.a.a

Models

Embedded model Embedded model in $\mathbb{P}^{3}$

$ 0 $ $=$ $ 6 x z + w^{2} $
$=$ $48 x^{2} + y^{2} - 3 z^{2}$
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Singular plane model Singular plane model

$ 0 $ $=$ $ 36 x^{4} - 3 x^{2} y^{2} - z^{4} $
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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 between models of this curve

Birational map from embedded model to plane model:

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

Maps to other modular curves

$j$-invariant map of degree 48 from the embedded model of this modular curve to the modular curve $X(1)$ :

$\displaystyle j$ $=$ $\displaystyle -2^2\,\frac{y^{12}-168y^{8}w^{4}+10128y^{4}w^{8}+2985255z^{12}-3965760z^{8}w^{4}+1762560z^{4}w^{8}-262016w^{12}}{w^{4}(y^{8}+12y^{4}w^{4}-81z^{8}+36z^{4}w^{4})}$

Modular covers

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Cover information

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This modular curve minimally covers the modular curves listed below.

Covered curve Level Index Degree Genus Rank Kernel decomposition
16.24.1.a.1 $16$ $2$ $2$ $1$ $0$ dimension zero
24.24.0.bl.1 $24$ $2$ $2$ $0$ $0$ full Jacobian
48.24.0.h.1 $48$ $2$ $2$ $0$ $0$ full Jacobian

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

Covering curve Level Index Degree Genus Rank Kernel decomposition
48.96.1.cv.1 $48$ $2$ $2$ $1$ $0$ dimension zero
48.96.1.cv.2 $48$ $2$ $2$ $1$ $0$ dimension zero
48.96.1.cw.1 $48$ $2$ $2$ $1$ $0$ dimension zero
48.96.1.cw.2 $48$ $2$ $2$ $1$ $0$ dimension zero
48.96.1.cx.1 $48$ $2$ $2$ $1$ $0$ dimension zero
48.96.1.cx.2 $48$ $2$ $2$ $1$ $0$ dimension zero
48.96.1.cy.1 $48$ $2$ $2$ $1$ $0$ dimension zero
48.96.1.cy.2 $48$ $2$ $2$ $1$ $0$ dimension zero
48.144.9.cq.1 $48$ $3$ $3$ $9$ $1$ $1^{8}$
48.192.9.zt.1 $48$ $4$ $4$ $9$ $2$ $1^{8}$
240.96.1.gz.1 $240$ $2$ $2$ $1$ $?$ dimension zero
240.96.1.gz.2 $240$ $2$ $2$ $1$ $?$ dimension zero
240.96.1.ha.1 $240$ $2$ $2$ $1$ $?$ dimension zero
240.96.1.ha.2 $240$ $2$ $2$ $1$ $?$ dimension zero
240.96.1.hb.1 $240$ $2$ $2$ $1$ $?$ dimension zero
240.96.1.hb.2 $240$ $2$ $2$ $1$ $?$ dimension zero
240.96.1.hc.1 $240$ $2$ $2$ $1$ $?$ dimension zero
240.96.1.hc.2 $240$ $2$ $2$ $1$ $?$ dimension zero
240.240.17.bk.1 $240$ $5$ $5$ $17$ $?$ not computed
240.288.17.cyk.1 $240$ $6$ $6$ $17$ $?$ not computed