Properties

Label 80.288.7-80.by.1.4
Level $80$
Index $288$
Genus $7$
Cusps $12$
$\Q$-cusps $4$

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Invariants

Level: $80$ $\SL_2$-level: $80$ Newform level: $1$
Index: $288$ $\PSL_2$-index:$144$
Genus: $7 = 1 + \frac{ 144 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 12 }{2}$
Cusps: $12$ (of which $4$ are rational) Cusp widths $1^{4}\cdot4\cdot5^{4}\cdot16\cdot20\cdot80$ Cusp orbits $1^{4}\cdot2^{4}$
Elliptic points: $0$ of order $2$ and $0$ of order $3$
Analytic rank: not computed
$\Q$-gonality: $4 \le \gamma \le 7$
$\overline{\Q}$-gonality: $4 \le \gamma \le 7$
Rational cusps: $4$
Rational CM points: none

Other labels

Cummins and Pauli (CP) label: 80F7

Level structure

$\GL_2(\Z/80\Z)$-generators: $\begin{bmatrix}4&39\\45&38\end{bmatrix}$, $\begin{bmatrix}10&53\\29&74\end{bmatrix}$, $\begin{bmatrix}25&68\\72&21\end{bmatrix}$, $\begin{bmatrix}31&50\\12&69\end{bmatrix}$, $\begin{bmatrix}48&33\\59&22\end{bmatrix}$, $\begin{bmatrix}52&35\\3&44\end{bmatrix}$
Contains $-I$: no $\quad$ (see 80.144.7.by.1 for the level structure with $-I$)
Cyclic 80-isogeny field degree: $2$
Cyclic 80-torsion field degree: $32$
Full 80-torsion field degree: $40960$

Rational points

This modular curve has 4 rational cusps but no known non-cuspidal rational points.

Modular covers

This modular curve minimally covers the modular curves listed below.

Covered curve Level Index Degree Genus Rank
40.144.3-40.bx.1.16 $40$ $2$ $2$ $3$ $0$
80.48.0-80.o.1.2 $80$ $6$ $6$ $0$ $?$
80.144.3-40.bx.1.18 $80$ $2$ $2$ $3$ $?$