Properties

Label 210.40.2.c.1
Level $210$
Index $40$
Genus $2$
Cusps $2$
$\Q$-cusps $2$

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Invariants

Level: $210$ $\SL_2$-level: $30$ Newform level: $1$
Index: $40$ $\PSL_2$-index:$40$
Genus: $2 = 1 + \frac{ 40 }{12} - \frac{ 0 }{4} - \frac{ 4 }{3} - \frac{ 2 }{2}$
Cusps: $2$ (all of which are rational) Cusp widths $10\cdot30$ Cusp orbits $1^{2}$
Elliptic points: $0$ of order $2$ and $4$ of order $3$
Analytic rank: not computed
$\Q$-gonality: $2$
$\overline{\Q}$-gonality: $2$
Rational cusps: $2$
Rational CM points: none

Other labels

Cummins and Pauli (CP) label: 30D2

Level structure

$\GL_2(\Z/210\Z)$-generators: $\begin{bmatrix}127&162\\193&167\end{bmatrix}$, $\begin{bmatrix}164&129\\117&143\end{bmatrix}$, $\begin{bmatrix}186&145\\55&177\end{bmatrix}$, $\begin{bmatrix}195&22\\101&175\end{bmatrix}$
Contains $-I$: yes
Quadratic refinements: 210.80.2-210.c.1.1, 210.80.2-210.c.1.2, 210.80.2-210.c.1.3, 210.80.2-210.c.1.4, 210.80.2-210.c.1.5, 210.80.2-210.c.1.6, 210.80.2-210.c.1.7, 210.80.2-210.c.1.8
Cyclic 210-isogeny field degree: $144$
Cyclic 210-torsion field degree: $6912$
Full 210-torsion field degree: $6967296$

Rational points

This modular curve has 2 rational cusps but no known non-cuspidal 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
$X_0(3)$ $3$ $10$ $10$ $0$ $0$
70.10.0.b.1 $70$ $4$ $4$ $0$ $0$

This modular curve minimally covers the modular curves listed below.

Covered curve Level Index Degree Genus Rank
15.20.1.a.1 $15$ $2$ $2$ $1$ $0$
70.10.0.b.1 $70$ $4$ $4$ $0$ $0$
210.8.0.a.1 $210$ $5$ $5$ $0$ $?$

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

Covering curve Level Index Degree Genus
210.120.8.d.1 $210$ $3$ $3$ $8$
210.120.8.h.1 $210$ $3$ $3$ $8$
210.120.9.p.1 $210$ $3$ $3$ $9$
210.160.9.bc.1 $210$ $4$ $4$ $9$
210.320.23.g.1 $210$ $8$ $8$ $23$