Properties

Label 156.144.1-12.b.1.4
Level $156$
Index $144$
Genus $1$
Cusps $12$
$\Q$-cusps $2$

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Invariants

Level: $156$ $\SL_2$-level: $6$ Newform level: $144$
Index: $144$ $\PSL_2$-index:$72$
Genus: $1 = 1 + \frac{ 72 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 12 }{2}$
Cusps: $12$ (of which $2$ are rational) Cusp widths $6^{12}$ Cusp orbits $1^{2}\cdot2^{3}\cdot4$
Elliptic points: $0$ of order $2$ and $0$ 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: 6F1

Level structure

$\GL_2(\Z/156\Z)$-generators: $\begin{bmatrix}18&53\\29&48\end{bmatrix}$, $\begin{bmatrix}84&49\\109&96\end{bmatrix}$, $\begin{bmatrix}121&60\\102&73\end{bmatrix}$, $\begin{bmatrix}147&70\\142&63\end{bmatrix}$, $\begin{bmatrix}155&114\\144&23\end{bmatrix}$
Contains $-I$: no $\quad$ (see 12.72.1.b.1 for the level structure with $-I$)
Cyclic 156-isogeny field degree: $28$
Cyclic 156-torsion field degree: $1344$
Full 156-torsion field degree: $838656$

Jacobian

Conductor: $?$
Simple: yes
Squarefree: yes
Decomposition: $1$
Newforms: 144.2.a.a

Models

Weierstrass model Weierstrass model

$ y^{2} $ $=$ $ x^{3} - 1 $
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Rational points

This modular curve is an elliptic curve, but the rank has not been computed

Maps to other modular curves

$j$-invariant map of degree 72 from the Weierstrass model of this modular curve to the modular curve $X(1)$ :

$\displaystyle j$ $=$ $\displaystyle -\frac{(y^{2}-3z^{2})^{3}(y^{6}-225y^{4}z^{2}-405y^{2}z^{4}-243z^{6})^{3}}{z^{2}y^{6}(y^{2}+z^{2})^{2}(y^{2}+9z^{2})^{6}}$

Modular covers

This modular curve minimally covers the modular curves listed below.

Covered curve Level Index Degree Genus Rank Kernel decomposition
78.72.0-6.a.1.2 $78$ $2$ $2$ $0$ $?$ full Jacobian
156.48.0-12.d.1.3 $156$ $3$ $3$ $0$ $?$ full Jacobian
156.48.0-12.d.1.4 $156$ $3$ $3$ $0$ $?$ full Jacobian
156.48.1-12.b.1.2 $156$ $3$ $3$ $1$ $?$ dimension zero
156.72.0-6.a.1.1 $156$ $2$ $2$ $0$ $?$ full Jacobian

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

Covering curve Level Index Degree Genus Rank Kernel decomposition
156.288.3-12.b.1.2 $156$ $2$ $2$ $3$ $?$ not computed
156.288.3-12.b.1.4 $156$ $2$ $2$ $3$ $?$ not computed
156.288.3-156.b.1.1 $156$ $2$ $2$ $3$ $?$ not computed
156.288.3-156.b.1.15 $156$ $2$ $2$ $3$ $?$ not computed
156.288.5-12.i.1.2 $156$ $2$ $2$ $5$ $?$ not computed
156.288.5-12.k.1.4 $156$ $2$ $2$ $5$ $?$ not computed
156.288.5-12.l.1.2 $156$ $2$ $2$ $5$ $?$ not computed
156.288.5-12.n.1.6 $156$ $2$ $2$ $5$ $?$ not computed
156.288.5-156.ba.1.4 $156$ $2$ $2$ $5$ $?$ not computed
156.288.5-156.bc.1.3 $156$ $2$ $2$ $5$ $?$ not computed
156.288.5-156.be.1.4 $156$ $2$ $2$ $5$ $?$ not computed
156.288.5-156.bg.1.3 $156$ $2$ $2$ $5$ $?$ not computed
156.288.7-12.bb.1.4 $156$ $2$ $2$ $7$ $?$ not computed
156.288.7-12.bb.1.6 $156$ $2$ $2$ $7$ $?$ not computed
156.288.7-156.el.1.5 $156$ $2$ $2$ $7$ $?$ not computed
156.288.7-156.el.1.11 $156$ $2$ $2$ $7$ $?$ not computed
312.288.3-24.b.1.1 $312$ $2$ $2$ $3$ $?$ not computed
312.288.3-24.b.1.2 $312$ $2$ $2$ $3$ $?$ not computed
312.288.3-312.b.1.10 $312$ $2$ $2$ $3$ $?$ not computed
312.288.3-312.b.1.22 $312$ $2$ $2$ $3$ $?$ not computed
312.288.5-24.cf.1.3 $312$ $2$ $2$ $5$ $?$ not computed
312.288.5-24.cs.1.3 $312$ $2$ $2$ $5$ $?$ not computed
312.288.5-24.cz.1.3 $312$ $2$ $2$ $5$ $?$ not computed
312.288.5-24.dn.1.3 $312$ $2$ $2$ $5$ $?$ not computed
312.288.5-312.ha.1.8 $312$ $2$ $2$ $5$ $?$ not computed
312.288.5-312.ho.1.8 $312$ $2$ $2$ $5$ $?$ not computed
312.288.5-312.ic.1.8 $312$ $2$ $2$ $5$ $?$ not computed
312.288.5-312.iq.1.8 $312$ $2$ $2$ $5$ $?$ not computed
312.288.7-24.or.1.9 $312$ $2$ $2$ $7$ $?$ not computed
312.288.7-24.or.1.10 $312$ $2$ $2$ $7$ $?$ not computed
312.288.7-312.bxh.1.12 $312$ $2$ $2$ $7$ $?$ not computed
312.288.7-312.bxh.1.24 $312$ $2$ $2$ $7$ $?$ not computed