Invariants
Level: | $56$ | $\SL_2$-level: | $8$ | Newform level: | $3136$ | ||
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 | $4^{8}\cdot8^{8}$ | Cusp orbits | $2^{2}\cdot4^{3}$ | ||
Elliptic points: | $0$ of order $2$ and $0$ of order $3$ | ||||||
Analytic rank: | $1$ | ||||||
$\Q$-gonality: | $2$ | ||||||
$\overline{\Q}$-gonality: | $2$ | ||||||
Rational cusps: | $0$ | ||||||
Rational CM points: | none |
Other labels
Cummins and Pauli (CP) label: | 8K1 |
Rouse, Sutherland, and Zureick-Brown (RSZB) label: | 56.96.1.544 |
Level structure
$\GL_2(\Z/56\Z)$-generators: | $\begin{bmatrix}13&18\\46&49\end{bmatrix}$, $\begin{bmatrix}27&44\\32&31\end{bmatrix}$, $\begin{bmatrix}43&2\\12&1\end{bmatrix}$, $\begin{bmatrix}53&22\\36&47\end{bmatrix}$ |
Contains $-I$: | yes |
Quadratic refinements: | 56.192.1-56.ce.1.1, 56.192.1-56.ce.1.2, 56.192.1-56.ce.1.3, 56.192.1-56.ce.1.4, 56.192.1-56.ce.1.5, 56.192.1-56.ce.1.6, 56.192.1-56.ce.1.7, 56.192.1-56.ce.1.8, 112.192.1-56.ce.1.1, 112.192.1-56.ce.1.2, 112.192.1-56.ce.1.3, 112.192.1-56.ce.1.4, 168.192.1-56.ce.1.1, 168.192.1-56.ce.1.2, 168.192.1-56.ce.1.3, 168.192.1-56.ce.1.4, 168.192.1-56.ce.1.5, 168.192.1-56.ce.1.6, 168.192.1-56.ce.1.7, 168.192.1-56.ce.1.8, 280.192.1-56.ce.1.1, 280.192.1-56.ce.1.2, 280.192.1-56.ce.1.3, 280.192.1-56.ce.1.4, 280.192.1-56.ce.1.5, 280.192.1-56.ce.1.6, 280.192.1-56.ce.1.7, 280.192.1-56.ce.1.8 |
Cyclic 56-isogeny field degree: | $8$ |
Cyclic 56-torsion field degree: | $192$ |
Full 56-torsion field degree: | $32256$ |
Jacobian
Conductor: | $2^{6}\cdot7^{2}$ |
Simple: | yes |
Squarefree: | yes |
Decomposition: | $1$ |
Newforms: | 3136.2.a.m |
Models
Embedded model Embedded model in $\mathbb{P}^{3}$
$ 0 $ | $=$ | $ x^{2} + y^{2} + z^{2} $ |
$=$ | $14 y^{2} - 14 z^{2} + w^{2}$ |
Rational points
This modular curve has no real points, and therefore no rational points.
Maps to other modular curves
$j$-invariant map of degree 96 from the embedded model of this modular curve to the modular curve $X(1)$ :
$\displaystyle j$ | $=$ | $\displaystyle \frac{2^4}{7^4}\cdot\frac{(38416z^{8}-5488z^{6}w^{2}+980z^{4}w^{4}-56z^{2}w^{6}+w^{8})^{3}}{w^{4}z^{8}(14z^{2}-w^{2})^{4}(28z^{2}-w^{2})^{2}}$ |
Modular covers
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 |
---|---|---|---|---|---|---|
8.48.0.j.1 | $8$ | $2$ | $2$ | $0$ | $0$ | full Jacobian |
56.48.0.k.1 | $56$ | $2$ | $2$ | $0$ | $0$ | full Jacobian |
56.48.0.l.1 | $56$ | $2$ | $2$ | $0$ | $0$ | full Jacobian |
56.48.0.ba.1 | $56$ | $2$ | $2$ | $0$ | $0$ | full Jacobian |
56.48.1.bg.2 | $56$ | $2$ | $2$ | $1$ | $1$ | dimension zero |
56.48.1.bh.1 | $56$ | $2$ | $2$ | $1$ | $1$ | dimension zero |
56.48.1.bv.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 |
---|---|---|---|---|---|---|
56.768.49.of.1 | $56$ | $8$ | $8$ | $49$ | $8$ | $1^{20}\cdot2^{6}\cdot4^{4}$ |
56.2016.145.blc.2 | $56$ | $21$ | $21$ | $145$ | $24$ | $1^{16}\cdot2^{26}\cdot4\cdot6^{4}\cdot12^{4}$ |
56.2688.193.bme.1 | $56$ | $28$ | $28$ | $193$ | $31$ | $1^{36}\cdot2^{32}\cdot4^{5}\cdot6^{4}\cdot12^{4}$ |
112.192.5.x.1 | $112$ | $2$ | $2$ | $5$ | $?$ | not computed |
112.192.5.cf.1 | $112$ | $2$ | $2$ | $5$ | $?$ | not computed |
112.192.5.ea.1 | $112$ | $2$ | $2$ | $5$ | $?$ | not computed |
112.192.5.el.1 | $112$ | $2$ | $2$ | $5$ | $?$ | not computed |
168.288.17.jdo.2 | $168$ | $3$ | $3$ | $17$ | $?$ | not computed |
168.384.17.dsg.2 | $168$ | $4$ | $4$ | $17$ | $?$ | not computed |