Invariants
Level: | $80$ | $\SL_2$-level: | $16$ | ||||
Index: | $96$ | $\PSL_2$-index: | $48$ | ||||
Genus: | $0 = 1 + \frac{ 48 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 10 }{2}$ | ||||||
Cusps: | $10$ (none of which are rational) | Cusp widths | $2^{8}\cdot16^{2}$ | Cusp orbits | $2^{3}\cdot4$ | ||
Elliptic points: | $0$ of order $2$ and $0$ of order $3$ | ||||||
$\Q$-gonality: | $2$ | ||||||
$\overline{\Q}$-gonality: | $1$ | ||||||
Rational cusps: | $0$ | ||||||
Rational CM points: | none |
Other labels
Cummins and Pauli (CP) label: | 16G0 |
Level structure
$\GL_2(\Z/80\Z)$-generators: | $\begin{bmatrix}15&68\\21&63\end{bmatrix}$, $\begin{bmatrix}27&72\\76&19\end{bmatrix}$, $\begin{bmatrix}29&28\\41&53\end{bmatrix}$, $\begin{bmatrix}61&16\\43&67\end{bmatrix}$ |
Contains $-I$: | no $\quad$ (see 80.48.0.h.1 for the level structure with $-I$) |
Cyclic 80-isogeny field degree: | $12$ |
Cyclic 80-torsion field degree: | $192$ |
Full 80-torsion field degree: | $122880$ |
Rational points
This modular curve has no real points, and therefore no rational points.
Modular covers
This modular curve minimally covers the modular curves listed below.
Covered curve | Level | Index | Degree | Genus | Rank |
---|---|---|---|---|---|
16.48.0-8.k.1.3 | $16$ | $2$ | $2$ | $0$ | $0$ |
40.48.0-8.k.1.6 | $40$ | $2$ | $2$ | $0$ | $0$ |
80.48.0-80.n.1.14 | $80$ | $2$ | $2$ | $0$ | $?$ |
80.48.0-80.n.1.17 | $80$ | $2$ | $2$ | $0$ | $?$ |
80.48.0-80.n.2.5 | $80$ | $2$ | $2$ | $0$ | $?$ |
80.48.0-80.n.2.26 | $80$ | $2$ | $2$ | $0$ | $?$ |
This modular curve is minimally covered by the modular curves in the database listed below.
Covering curve | Level | Index | Degree | Genus |
---|---|---|---|---|
80.192.1-80.t.1.1 | $80$ | $2$ | $2$ | $1$ |
80.192.1-80.t.2.1 | $80$ | $2$ | $2$ | $1$ |
80.192.1-80.w.1.1 | $80$ | $2$ | $2$ | $1$ |
80.192.1-80.w.2.1 | $80$ | $2$ | $2$ | $1$ |
80.192.1-80.ba.1.1 | $80$ | $2$ | $2$ | $1$ |
80.192.1-80.ba.2.1 | $80$ | $2$ | $2$ | $1$ |
80.192.1-80.bd.1.1 | $80$ | $2$ | $2$ | $1$ |
80.192.1-80.bd.2.1 | $80$ | $2$ | $2$ | $1$ |
80.480.16-80.m.1.7 | $80$ | $5$ | $5$ | $16$ |
240.192.1-240.ch.1.9 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.ch.2.3 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.cr.1.9 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.cr.2.3 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.cz.1.5 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.cz.2.3 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.dj.1.5 | $240$ | $2$ | $2$ | $1$ |
240.192.1-240.dj.2.3 | $240$ | $2$ | $2$ | $1$ |
240.288.8-240.bf.1.8 | $240$ | $3$ | $3$ | $8$ |
240.384.7-240.of.1.11 | $240$ | $4$ | $4$ | $7$ |