Properties

Label 56.1008.70.l.1
Level $56$
Index $1008$
Genus $70$
Analytic rank $6$
Cusps $30$
$\Q$-cusps $0$

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Invariants

Level: $56$ $\SL_2$-level: $56$ Newform level: $784$
Index: $1008$ $\PSL_2$-index:$1008$
Genus: $70 = 1 + \frac{ 1008 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 30 }{2}$
Cusps: $30$ (none of which are rational) Cusp widths $28^{24}\cdot56^{6}$ Cusp orbits $3^{4}\cdot6^{3}$
Elliptic points: $0$ of order $2$ and $0$ of order $3$
Analytic rank: $6$
$\Q$-gonality: $10 \le \gamma \le 21$
$\overline{\Q}$-gonality: $10 \le \gamma \le 21$
Rational cusps: $0$
Rational CM points: none

Other labels

Rouse, Sutherland, and Zureick-Brown (RSZB) label: 56.1008.70.2

Level structure

$\GL_2(\Z/56\Z)$-generators: $\begin{bmatrix}7&36\\48&35\end{bmatrix}$, $\begin{bmatrix}9&40\\8&33\end{bmatrix}$, $\begin{bmatrix}11&0\\12&31\end{bmatrix}$, $\begin{bmatrix}19&12\\38&37\end{bmatrix}$, $\begin{bmatrix}27&40\\48&15\end{bmatrix}$, $\begin{bmatrix}31&44\\16&51\end{bmatrix}$, $\begin{bmatrix}39&36\\18&45\end{bmatrix}$
Contains $-I$: yes
Quadratic refinements: 56.2016.70-56.l.1.1, 56.2016.70-56.l.1.2, 56.2016.70-56.l.1.3, 56.2016.70-56.l.1.4, 56.2016.70-56.l.1.5, 56.2016.70-56.l.1.6, 56.2016.70-56.l.1.7, 56.2016.70-56.l.1.8, 56.2016.70-56.l.1.9, 56.2016.70-56.l.1.10, 56.2016.70-56.l.1.11, 56.2016.70-56.l.1.12, 56.2016.70-56.l.1.13, 56.2016.70-56.l.1.14, 56.2016.70-56.l.1.15, 56.2016.70-56.l.1.16, 56.2016.70-56.l.1.17, 56.2016.70-56.l.1.18, 56.2016.70-56.l.1.19, 56.2016.70-56.l.1.20, 56.2016.70-56.l.1.21, 56.2016.70-56.l.1.22, 56.2016.70-56.l.1.23, 56.2016.70-56.l.1.24, 56.2016.70-56.l.1.25, 56.2016.70-56.l.1.26, 56.2016.70-56.l.1.27, 56.2016.70-56.l.1.28, 56.2016.70-56.l.1.29, 56.2016.70-56.l.1.30, 56.2016.70-56.l.1.31, 56.2016.70-56.l.1.32, 56.2016.70-56.l.1.33, 56.2016.70-56.l.1.34, 56.2016.70-56.l.1.35, 56.2016.70-56.l.1.36, 56.2016.70-56.l.1.37, 56.2016.70-56.l.1.38, 56.2016.70-56.l.1.39, 56.2016.70-56.l.1.40
Cyclic 56-isogeny field degree: $16$
Cyclic 56-torsion field degree: $192$
Full 56-torsion field degree: $3072$

Jacobian

Conductor: $2^{194}\cdot7^{140}$
Simple: no
Squarefree: no
Decomposition: $1^{10}\cdot2^{12}\cdot6^{2}\cdot12^{2}$
Newforms: 98.2.a.b$^{4}$, 196.2.a.b$^{3}$, 196.2.a.c$^{3}$, 392.2.a.c$^{2}$, 392.2.a.f$^{2}$, 392.2.a.g$^{2}$, 392.2.b.e$^{2}$, 392.2.b.g$^{2}$, 784.2.a.a, 784.2.a.d, 784.2.a.h, 784.2.a.k, 784.2.a.l, 784.2.a.m

Rational points

This modular curve has no $\Q_p$ points for $p=3,5,11,23,37,67,103,149$, and therefore no rational points.

Modular covers

The following modular covers realize this modular curve as a fiber product over $X(1)$.

Factor curve Level Index Degree Genus Rank Kernel decomposition
$X_{\mathrm{ns}}^+(7)$ $7$ $48$ $48$ $0$ $0$ full Jacobian
8.48.0.c.1 $8$ $21$ $21$ $0$ $0$ full Jacobian

This modular curve minimally covers the modular curves listed below.

Covered curve Level Index Degree Genus Rank Kernel decomposition
8.48.0.c.1 $8$ $21$ $21$ $0$ $0$ full Jacobian
28.504.34.b.1 $28$ $2$ $2$ $34$ $6$ $6^{2}\cdot12^{2}$
56.504.34.z.1 $56$ $2$ $2$ $34$ $1$ $1^{6}\cdot2^{6}\cdot6\cdot12$
56.504.34.z.2 $56$ $2$ $2$ $34$ $1$ $1^{6}\cdot2^{6}\cdot6\cdot12$

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

Covering curve Level Index Degree Genus Rank Kernel decomposition
56.2016.139.h.1 $56$ $2$ $2$ $139$ $16$ $1^{27}\cdot2^{7}\cdot4^{4}\cdot6^{2}$
56.2016.139.l.1 $56$ $2$ $2$ $139$ $30$ $1^{27}\cdot2^{7}\cdot4^{4}\cdot6^{2}$
56.2016.139.bi.1 $56$ $2$ $2$ $139$ $12$ $1^{27}\cdot2^{7}\cdot4^{4}\cdot6^{2}$
56.2016.139.bm.1 $56$ $2$ $2$ $139$ $21$ $1^{27}\cdot2^{7}\cdot4^{4}\cdot6^{2}$
56.2016.139.cj.1 $56$ $2$ $2$ $139$ $19$ $1^{27}\cdot2^{7}\cdot4^{4}\cdot6^{2}$
56.2016.139.cn.1 $56$ $2$ $2$ $139$ $18$ $1^{27}\cdot2^{7}\cdot4^{4}\cdot6^{2}$
56.2016.139.dh.1 $56$ $2$ $2$ $139$ $15$ $1^{27}\cdot2^{7}\cdot4^{4}\cdot6^{2}$
56.2016.139.dl.1 $56$ $2$ $2$ $139$ $21$ $1^{27}\cdot2^{7}\cdot4^{4}\cdot6^{2}$
56.2016.145.pd.1 $56$ $2$ $2$ $145$ $23$ $1^{7}\cdot2^{14}\cdot4\cdot6^{2}\cdot12^{2}$
56.2016.145.pd.2 $56$ $2$ $2$ $145$ $23$ $1^{7}\cdot2^{14}\cdot4\cdot6^{2}\cdot12^{2}$
56.2016.145.pe.1 $56$ $2$ $2$ $145$ $24$ $1^{7}\cdot2^{14}\cdot4\cdot6^{2}\cdot12^{2}$
56.2016.145.pe.2 $56$ $2$ $2$ $145$ $24$ $1^{7}\cdot2^{14}\cdot4\cdot6^{2}\cdot12^{2}$
56.2016.145.pf.1 $56$ $2$ $2$ $145$ $21$ $1^{23}\cdot2^{12}\cdot4^{4}\cdot6^{2}$
56.2016.145.pf.2 $56$ $2$ $2$ $145$ $21$ $1^{23}\cdot2^{12}\cdot4^{4}\cdot6^{2}$
56.2016.145.pg.1 $56$ $2$ $2$ $145$ $18$ $1^{23}\cdot2^{12}\cdot4^{4}\cdot6^{2}$
56.2016.145.pg.2 $56$ $2$ $2$ $145$ $18$ $1^{23}\cdot2^{12}\cdot4^{4}\cdot6^{2}$
56.2016.145.ph.1 $56$ $2$ $2$ $145$ $25$ $1^{23}\cdot2^{12}\cdot4^{4}\cdot6^{2}$
56.2016.145.ph.2 $56$ $2$ $2$ $145$ $25$ $1^{23}\cdot2^{12}\cdot4^{4}\cdot6^{2}$
56.2016.145.pi.1 $56$ $2$ $2$ $145$ $26$ $1^{23}\cdot2^{12}\cdot4^{4}\cdot6^{2}$
56.2016.145.pi.2 $56$ $2$ $2$ $145$ $26$ $1^{23}\cdot2^{12}\cdot4^{4}\cdot6^{2}$
56.2016.145.pj.1 $56$ $2$ $2$ $145$ $20$ $1^{7}\cdot2^{14}\cdot4\cdot6^{2}\cdot12^{2}$
56.2016.145.pj.2 $56$ $2$ $2$ $145$ $20$ $1^{7}\cdot2^{14}\cdot4\cdot6^{2}\cdot12^{2}$
56.2016.145.pk.1 $56$ $2$ $2$ $145$ $19$ $1^{7}\cdot2^{14}\cdot4\cdot6^{2}\cdot12^{2}$
56.2016.145.pk.2 $56$ $2$ $2$ $145$ $19$ $1^{7}\cdot2^{14}\cdot4\cdot6^{2}\cdot12^{2}$
56.2016.151.ex.1 $56$ $2$ $2$ $151$ $23$ $1^{7}\cdot2^{15}\cdot4^{4}\cdot12\cdot16$
56.2016.151.ey.1 $56$ $2$ $2$ $151$ $19$ $1^{7}\cdot2^{15}\cdot4^{4}\cdot12\cdot16$
56.2016.151.ez.1 $56$ $2$ $2$ $151$ $24$ $1^{7}\cdot2^{15}\cdot4^{4}\cdot12\cdot16$
56.2016.151.fa.1 $56$ $2$ $2$ $151$ $20$ $1^{7}\cdot2^{15}\cdot4^{4}\cdot12\cdot16$
56.2016.151.fb.1 $56$ $2$ $2$ $151$ $18$ $1^{23}\cdot2^{11}\cdot4^{4}\cdot8\cdot12$
56.2016.151.fc.1 $56$ $2$ $2$ $151$ $25$ $1^{23}\cdot2^{11}\cdot4^{4}\cdot8\cdot12$
56.2016.151.fd.1 $56$ $2$ $2$ $151$ $21$ $1^{23}\cdot2^{11}\cdot4^{4}\cdot8\cdot12$
56.2016.151.fe.1 $56$ $2$ $2$ $151$ $26$ $1^{23}\cdot2^{11}\cdot4^{4}\cdot8\cdot12$