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Properties

Label 48.96.1.bn.1
Level $48$
Index $96$
Genus $1$
Analytic rank $0$
Cusps $16$
$\Q$-cusps $0$

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Invariants

Level: $48$ $\SL_2$-level: $16$ Newform level: $288$
Index: $96$ $\PSL_2$-index:$96$
Genus: $1 = 1 + \frac{ 96 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 16 }{2}$
Cusps: $16$ (none of which are rational) Cusp widths $2^{8}\cdot4^{4}\cdot16^{4}$ Cusp orbits $2^{4}\cdot4^{2}$
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: 16M1
Rouse, Sutherland, and Zureick-Brown (RSZB) label: 48.96.1.186

Level structure

$\GL_2(\Z/48\Z)$-generators: $\begin{bmatrix}11&6\\8&7\end{bmatrix}$, $\begin{bmatrix}23&35\\40&29\end{bmatrix}$, $\begin{bmatrix}37&3\\40&11\end{bmatrix}$, $\begin{bmatrix}43&1\\8&9\end{bmatrix}$, $\begin{bmatrix}45&34\\40&25\end{bmatrix}$
Contains $-I$: yes
Quadratic refinements: 48.192.1-48.bn.1.1, 48.192.1-48.bn.1.2, 48.192.1-48.bn.1.3, 48.192.1-48.bn.1.4, 48.192.1-48.bn.1.5, 48.192.1-48.bn.1.6, 48.192.1-48.bn.1.7, 48.192.1-48.bn.1.8, 48.192.1-48.bn.1.9, 48.192.1-48.bn.1.10, 48.192.1-48.bn.1.11, 48.192.1-48.bn.1.12, 240.192.1-48.bn.1.1, 240.192.1-48.bn.1.2, 240.192.1-48.bn.1.3, 240.192.1-48.bn.1.4, 240.192.1-48.bn.1.5, 240.192.1-48.bn.1.6, 240.192.1-48.bn.1.7, 240.192.1-48.bn.1.8, 240.192.1-48.bn.1.9, 240.192.1-48.bn.1.10, 240.192.1-48.bn.1.11, 240.192.1-48.bn.1.12
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 $ $=$ $ x^{2} - 2 y^{2} + z^{2} + w^{2} $
$=$ $y^{2} - 3 z w$
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Singular plane model Singular plane model

$ 0 $ $=$ $ 9 x^{4} - 18 x^{2} z^{2} + y^{2} z^{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:

$\displaystyle X$ $=$ $\displaystyle y$
$\displaystyle Y$ $=$ $\displaystyle 3x$
$\displaystyle Z$ $=$ $\displaystyle 3w$

Maps to other modular curves

$j$-invariant map of degree 96 from the embedded model of this modular curve to the modular curve $X(1)$ :

$\displaystyle j$ $=$ $\displaystyle \frac{(z^{8}-8z^{7}w+12z^{6}w^{2}+8z^{5}w^{3}-10z^{4}w^{4}+8z^{3}w^{5}+12z^{2}w^{6}-8zw^{7}+w^{8})^{3}}{w^{8}z^{8}(z-w)^{4}(z+w)^{2}(z^{2}-6zw+w^{2})}$

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
8.48.0.n.2 $8$ $2$ $2$ $0$ $0$ full Jacobian
48.48.0.k.1 $48$ $2$ $2$ $0$ $0$ full Jacobian
48.48.0.bg.1 $48$ $2$ $2$ $0$ $0$ full Jacobian
48.48.0.bh.1 $48$ $2$ $2$ $0$ $0$ full Jacobian
48.48.1.h.1 $48$ $2$ $2$ $1$ $0$ dimension zero
48.48.1.ca.1 $48$ $2$ $2$ $1$ $0$ dimension zero
48.48.1.cb.1 $48$ $2$ $2$ $1$ $0$ 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
48.192.5.hi.2 $48$ $2$ $2$ $5$ $1$ $1^{2}\cdot2$
48.192.5.hl.2 $48$ $2$ $2$ $5$ $0$ $1^{2}\cdot2$
48.192.5.hp.1 $48$ $2$ $2$ $5$ $0$ $1^{2}\cdot2$
48.192.5.hq.2 $48$ $2$ $2$ $5$ $1$ $1^{2}\cdot2$
48.288.17.ny.1 $48$ $3$ $3$ $17$ $1$ $1^{8}\cdot2^{4}$
48.384.17.po.1 $48$ $4$ $4$ $17$ $1$ $1^{8}\cdot2^{4}$
240.192.5.bym.2 $240$ $2$ $2$ $5$ $?$ not computed
240.192.5.byn.2 $240$ $2$ $2$ $5$ $?$ not computed
240.192.5.byq.1 $240$ $2$ $2$ $5$ $?$ not computed
240.192.5.byr.1 $240$ $2$ $2$ $5$ $?$ not computed