Invariants
| Level: | $56$ | $\SL_2$-level: | $8$ | Newform level: | $1568$ | ||
| Index: | $192$ | $\PSL_2$-index: | $96$ | ||||
| Genus: | $1 = 1 + \frac{ 96 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 16 }{2}$ | ||||||
| Cusps: | $16$ (of which $4$ are rational) | Cusp widths | $4^{8}\cdot8^{8}$ | Cusp orbits | $1^{4}\cdot4^{3}$ | ||
| Elliptic points: | $0$ of order $2$ and $0$ of order $3$ | ||||||
| Analytic rank: | $1$ | ||||||
| $\Q$-gonality: | $2$ | ||||||
| $\overline{\Q}$-gonality: | $2$ | ||||||
| Rational cusps: | $4$ | ||||||
| Rational CM points: | none |
Other labels
| Cummins and Pauli (CP) label: | 8K1 |
| Rouse, Sutherland, and Zureick-Brown (RSZB) label: | 56.192.1.545 |
Level structure
| $\GL_2(\Z/56\Z)$-generators: | $\begin{bmatrix}13&18\\4&35\end{bmatrix}$, $\begin{bmatrix}13&36\\22&51\end{bmatrix}$, $\begin{bmatrix}15&28\\22&53\end{bmatrix}$ |
| Contains $-I$: | no $\quad$ (see 56.96.1.cd.1 for the level structure with $-I$) |
| Cyclic 56-isogeny field degree: | $8$ |
| Cyclic 56-torsion field degree: | $192$ |
| Full 56-torsion field degree: | $16128$ |
Jacobian
| Conductor: | $2^{5}\cdot7^{2}$ |
| Simple: | yes |
| Squarefree: | yes |
| Decomposition: | $1$ |
| Newforms: | 1568.2.a.e |
Rational points
This modular curve has infinitely many rational points but none with conductor small enough to be contained within the database of elliptic curves over $\Q$.
Modular covers
This modular curve minimally covers the modular curves listed below.
| Covered curve | Level | Index | Degree | Genus | Rank | Kernel decomposition |
|---|---|---|---|---|---|---|
| 8.96.0-8.l.1.3 | $8$ | $2$ | $2$ | $0$ | $0$ | full Jacobian |
| 56.96.0-56.i.2.7 | $56$ | $2$ | $2$ | $0$ | $0$ | full Jacobian |
| 56.96.0-56.i.2.12 | $56$ | $2$ | $2$ | $0$ | $0$ | full Jacobian |
| 56.96.0-56.j.2.2 | $56$ | $2$ | $2$ | $0$ | $0$ | full Jacobian |
| 56.96.0-56.j.2.14 | $56$ | $2$ | $2$ | $0$ | $0$ | full Jacobian |
| 56.96.0-8.l.1.2 | $56$ | $2$ | $2$ | $0$ | $0$ | full Jacobian |
| 56.96.0-56.ba.1.8 | $56$ | $2$ | $2$ | $0$ | $0$ | full Jacobian |
| 56.96.0-56.ba.1.14 | $56$ | $2$ | $2$ | $0$ | $0$ | full Jacobian |
| 56.96.1-56.be.2.10 | $56$ | $2$ | $2$ | $1$ | $1$ | dimension zero |
| 56.96.1-56.be.2.16 | $56$ | $2$ | $2$ | $1$ | $1$ | dimension zero |
| 56.96.1-56.bf.2.2 | $56$ | $2$ | $2$ | $1$ | $1$ | dimension zero |
| 56.96.1-56.bf.2.16 | $56$ | $2$ | $2$ | $1$ | $1$ | dimension zero |
| 56.96.1-56.bu.1.5 | $56$ | $2$ | $2$ | $1$ | $1$ | dimension zero |
| 56.96.1-56.bu.1.8 | $56$ | $2$ | $2$ | $1$ | $1$ | 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 |
|---|---|---|---|---|---|---|
| 56.1536.49-56.od.2.14 | $56$ | $8$ | $8$ | $49$ | $7$ | $1^{20}\cdot2^{6}\cdot4^{4}$ |
| 56.4032.145-56.blb.2.4 | $56$ | $21$ | $21$ | $145$ | $20$ | $1^{16}\cdot2^{26}\cdot4\cdot6^{4}\cdot12^{4}$ |
| 56.5376.193-56.bmd.1.9 | $56$ | $28$ | $28$ | $193$ | $26$ | $1^{36}\cdot2^{32}\cdot4^{5}\cdot6^{4}\cdot12^{4}$ |
| 112.384.5-112.bq.1.4 | $112$ | $2$ | $2$ | $5$ | $?$ | not computed |
| 112.384.5-112.cb.1.4 | $112$ | $2$ | $2$ | $5$ | $?$ | not computed |
| 112.384.5-112.dj.1.14 | $112$ | $2$ | $2$ | $5$ | $?$ | not computed |
| 112.384.5-112.dk.1.12 | $112$ | $2$ | $2$ | $5$ | $?$ | not computed |
| 112.384.5-112.dn.2.10 | $112$ | $2$ | $2$ | $5$ | $?$ | not computed |
| 112.384.5-112.do.1.2 | $112$ | $2$ | $2$ | $5$ | $?$ | not computed |
| 112.384.5-112.dr.1.10 | $112$ | $2$ | $2$ | $5$ | $?$ | not computed |
| 112.384.5-112.ds.1.13 | $112$ | $2$ | $2$ | $5$ | $?$ | not computed |
| 112.384.5-112.dv.1.6 | $112$ | $2$ | $2$ | $5$ | $?$ | not computed |
| 112.384.5-112.dw.1.7 | $112$ | $2$ | $2$ | $5$ | $?$ | not computed |
| 112.384.5-112.ef.1.4 | $112$ | $2$ | $2$ | $5$ | $?$ | not computed |
| 112.384.5-112.ek.1.4 | $112$ | $2$ | $2$ | $5$ | $?$ | not computed |