Properties

Label 56.48.1.bi.2
Level $56$
Index $48$
Genus $1$
Analytic rank $1$
Cusps $8$
$\Q$-cusps $2$

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Invariants

Level: $56$ $\SL_2$-level: $8$ Newform level: $3136$
Index: $48$ $\PSL_2$-index:$48$
Genus: $1 = 1 + \frac{ 48 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 8 }{2}$
Cusps: $8$ (of which $2$ are rational) Cusp widths $4^{4}\cdot8^{4}$ Cusp orbits $1^{2}\cdot2^{3}$
Elliptic points: $0$ of order $2$ and $0$ of order $3$
Analytic rank: $1$
$\Q$-gonality: $2$
$\overline{\Q}$-gonality: $2$
Rational cusps: $2$
Rational CM points: none

Other labels

Cummins and Pauli (CP) label: 8G1
Rouse, Sutherland, and Zureick-Brown (RSZB) label: 56.48.1.64

Level structure

$\GL_2(\Z/56\Z)$-generators: $\begin{bmatrix}17&8\\46&37\end{bmatrix}$, $\begin{bmatrix}17&12\\12&37\end{bmatrix}$, $\begin{bmatrix}33&28\\8&1\end{bmatrix}$, $\begin{bmatrix}47&8\\28&53\end{bmatrix}$, $\begin{bmatrix}55&40\\22&19\end{bmatrix}$
Contains $-I$: yes
Quadratic refinements: 56.96.1-56.bi.2.1, 56.96.1-56.bi.2.2, 56.96.1-56.bi.2.3, 56.96.1-56.bi.2.4, 56.96.1-56.bi.2.5, 56.96.1-56.bi.2.6, 56.96.1-56.bi.2.7, 56.96.1-56.bi.2.8, 56.96.1-56.bi.2.9, 56.96.1-56.bi.2.10, 56.96.1-56.bi.2.11, 56.96.1-56.bi.2.12, 56.96.1-56.bi.2.13, 56.96.1-56.bi.2.14, 56.96.1-56.bi.2.15, 56.96.1-56.bi.2.16, 168.96.1-56.bi.2.1, 168.96.1-56.bi.2.2, 168.96.1-56.bi.2.3, 168.96.1-56.bi.2.4, 168.96.1-56.bi.2.5, 168.96.1-56.bi.2.6, 168.96.1-56.bi.2.7, 168.96.1-56.bi.2.8, 168.96.1-56.bi.2.9, 168.96.1-56.bi.2.10, 168.96.1-56.bi.2.11, 168.96.1-56.bi.2.12, 168.96.1-56.bi.2.13, 168.96.1-56.bi.2.14, 168.96.1-56.bi.2.15, 168.96.1-56.bi.2.16, 280.96.1-56.bi.2.1, 280.96.1-56.bi.2.2, 280.96.1-56.bi.2.3, 280.96.1-56.bi.2.4, 280.96.1-56.bi.2.5, 280.96.1-56.bi.2.6, 280.96.1-56.bi.2.7, 280.96.1-56.bi.2.8, 280.96.1-56.bi.2.9, 280.96.1-56.bi.2.10, 280.96.1-56.bi.2.11, 280.96.1-56.bi.2.12, 280.96.1-56.bi.2.13, 280.96.1-56.bi.2.14, 280.96.1-56.bi.2.15, 280.96.1-56.bi.2.16
Cyclic 56-isogeny field degree: $16$
Cyclic 56-torsion field degree: $384$
Full 56-torsion field degree: $64512$

Jacobian

Conductor: $2^{6}\cdot7^{2}$
Simple: yes
Squarefree: yes
Decomposition: $1$
Newforms: 3136.2.a.m

Rational points

This modular curve has infinitely many rational points, including 1 stored non-cuspidal point.

Modular covers

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Cover information

Click on a modular curve in the diagram to see information about it.

This modular curve minimally covers the modular curves listed below.

Covered curve Level Index Degree Genus Rank Kernel decomposition
8.24.0.e.1 $8$ $2$ $2$ $0$ $0$ full Jacobian
56.24.0.h.2 $56$ $2$ $2$ $0$ $0$ full Jacobian
56.24.1.d.1 $56$ $2$ $2$ $1$ $1$ 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
56.96.1.g.2 $56$ $2$ $2$ $1$ $1$ dimension zero
56.96.1.w.1 $56$ $2$ $2$ $1$ $1$ dimension zero
56.96.1.bl.1 $56$ $2$ $2$ $1$ $1$ dimension zero
56.96.1.bp.2 $56$ $2$ $2$ $1$ $1$ dimension zero
56.96.1.bu.1 $56$ $2$ $2$ $1$ $1$ dimension zero
56.96.1.by.2 $56$ $2$ $2$ $1$ $1$ dimension zero
56.96.1.cf.2 $56$ $2$ $2$ $1$ $1$ dimension zero
56.96.1.ch.1 $56$ $2$ $2$ $1$ $1$ dimension zero
56.384.25.eh.1 $56$ $8$ $8$ $25$ $4$ $1^{8}\cdot2^{4}\cdot4^{2}$
56.1008.73.hd.2 $56$ $21$ $21$ $73$ $10$ $1^{4}\cdot2^{14}\cdot4\cdot6^{2}\cdot12^{2}$
56.1344.97.hd.1 $56$ $28$ $28$ $97$ $13$ $1^{12}\cdot2^{18}\cdot4^{3}\cdot6^{2}\cdot12^{2}$
168.96.1.gm.1 $168$ $2$ $2$ $1$ $?$ dimension zero
168.96.1.gs.1 $168$ $2$ $2$ $1$ $?$ dimension zero
168.96.1.ht.1 $168$ $2$ $2$ $1$ $?$ dimension zero
168.96.1.hz.1 $168$ $2$ $2$ $1$ $?$ dimension zero
168.96.1.mu.1 $168$ $2$ $2$ $1$ $?$ dimension zero
168.96.1.na.1 $168$ $2$ $2$ $1$ $?$ dimension zero
168.96.1.oa.1 $168$ $2$ $2$ $1$ $?$ dimension zero
168.96.1.og.1 $168$ $2$ $2$ $1$ $?$ dimension zero
168.144.9.sh.2 $168$ $3$ $3$ $9$ $?$ not computed
168.192.9.jr.2 $168$ $4$ $4$ $9$ $?$ not computed
280.96.1.gm.1 $280$ $2$ $2$ $1$ $?$ dimension zero
280.96.1.gs.1 $280$ $2$ $2$ $1$ $?$ dimension zero
280.96.1.ht.1 $280$ $2$ $2$ $1$ $?$ dimension zero
280.96.1.hz.1 $280$ $2$ $2$ $1$ $?$ dimension zero
280.96.1.ma.1 $280$ $2$ $2$ $1$ $?$ dimension zero
280.96.1.mg.1 $280$ $2$ $2$ $1$ $?$ dimension zero
280.96.1.ng.1 $280$ $2$ $2$ $1$ $?$ dimension zero
280.96.1.nm.1 $280$ $2$ $2$ $1$ $?$ dimension zero
280.240.17.ev.2 $280$ $5$ $5$ $17$ $?$ not computed
280.288.17.ly.1 $280$ $6$ $6$ $17$ $?$ not computed