Properties

Label 12.72.2-12.d.1.3
Level $12$
Index $72$
Genus $2$
Analytic rank $0$
Cusps $4$
$\Q$-cusps $2$

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Invariants

Level: $12$ $\SL_2$-level: $12$ Newform level: $36$
Index: $72$ $\PSL_2$-index:$36$
Genus: $2 = 1 + \frac{ 36 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 4 }{2}$
Cusps: $4$ (of which $2$ are rational) Cusp widths $6^{2}\cdot12^{2}$ Cusp orbits $1^{2}\cdot2$
Elliptic points: $0$ of order $2$ and $0$ of order $3$
Analytic rank: $0$
$\Q$-gonality: $2$
$\overline{\Q}$-gonality: $2$
Rational cusps: $2$
Rational CM points: none

Other labels

Cummins and Pauli (CP) label: 12B2
Rouse, Sutherland, and Zureick-Brown (RSZB) label: 12.72.2.11

Level structure

$\GL_2(\Z/12\Z)$-generators: $\begin{bmatrix}1&4\\4&5\end{bmatrix}$, $\begin{bmatrix}3&10\\8&9\end{bmatrix}$, $\begin{bmatrix}3&10\\10&11\end{bmatrix}$, $\begin{bmatrix}7&8\\6&11\end{bmatrix}$
$\GL_2(\Z/12\Z)$-subgroup: $C_2^2\times \SD_{16}$
Contains $-I$: no $\quad$ (see 12.36.2.d.1 for the level structure with $-I$)
Cyclic 12-isogeny field degree: $8$
Cyclic 12-torsion field degree: $16$
Full 12-torsion field degree: $64$

Jacobian

Conductor: $2^{4}\cdot3^{4}$
Simple: no
Squarefree: no
Decomposition: $1^{2}$
Newforms: 36.2.a.a$^{2}$

Models

Embedded model Embedded model in $\mathbb{P}^{3}$

$ 0 $ $=$ $ 3 x^{2} y + x z^{2} + y w^{2} $
$=$ $3 x^{2} w + 12 x y z + w^{3}$
$=$ $12 y^{2} w - z w^{2}$
$=$ $12 y^{2} z - z^{2} w$
$=$$\cdots$
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Singular plane model Singular plane model

$ 0 $ $=$ $ 2 x^{3} y + 27 y^{2} z^{2} + z^{4} $
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Weierstrass model Weierstrass model

$ y^{2} $ $=$ $ x^{6} - 27 $
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Rational points

This modular curve has 2 rational cusps but no known non-cuspidal rational points. The following are the coordinates of the rational cusps on this modular curve.

Embedded model
$(0:0:1:0)$, $(1:0:0:0)$

Maps to other modular curves

$j$-invariant map of degree 36 from the embedded model of this modular curve to the modular curve $X(1)$ :

$\displaystyle j$ $=$ $\displaystyle 2^8\,\frac{27x^{6}z^{2}+9x^{4}z^{2}w^{2}+6x^{2}z^{2}w^{4}+3xyw^{6}+16z^{8}-8z^{5}w^{3}+2z^{2}w^{6}}{w^{4}z^{2}(3x^{2}+w^{2})}$

Map of degree 1 from the embedded model of this modular curve to the plane model of the modular curve 12.36.2.d.1 :

$\displaystyle X$ $=$ $\displaystyle y$
$\displaystyle Y$ $=$ $\displaystyle \frac{1}{18}x$
$\displaystyle Z$ $=$ $\displaystyle \frac{1}{6}w$

Equation of the image curve:

$0$ $=$ $ 2X^{3}Y+27Y^{2}Z^{2}+Z^{4} $

Map of degree 1 from the embedded model of this modular curve to the Weierstrass model of the modular curve 12.36.2.d.1 :

$\displaystyle X$ $=$ $\displaystyle -y$
$\displaystyle Y$ $=$ $\displaystyle \frac{1}{24}xw^{2}+y^{3}$
$\displaystyle Z$ $=$ $\displaystyle \frac{1}{6}w$

Modular covers

This modular curve minimally covers the modular curves listed below.

Covered curve Level Index Degree Genus Rank Kernel decomposition
12.24.0-12.b.1.1 $12$ $3$ $3$ $0$ $0$ full Jacobian
12.36.1-6.a.1.1 $12$ $2$ $2$ $1$ $0$ $1$
12.36.1-6.a.1.2 $12$ $2$ $2$ $1$ $0$ $1$

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

Covering curve Level Index Degree Genus Rank Kernel decomposition
12.144.3-12.f.1.2 $12$ $2$ $2$ $3$ $0$ $1$
12.144.3-12.h.1.2 $12$ $2$ $2$ $3$ $0$ $1$
12.144.3-12.o.1.5 $12$ $2$ $2$ $3$ $0$ $1$
12.144.3-12.p.1.2 $12$ $2$ $2$ $3$ $0$ $1$
12.144.4-12.d.1.1 $12$ $2$ $2$ $4$ $0$ $1^{2}$
12.144.4-12.d.1.3 $12$ $2$ $2$ $4$ $0$ $1^{2}$
12.144.4-12.e.1.1 $12$ $2$ $2$ $4$ $0$ $1^{2}$
12.144.4-12.e.1.7 $12$ $2$ $2$ $4$ $0$ $1^{2}$
12.144.4-12.n.1.3 $12$ $2$ $2$ $4$ $0$ $1^{2}$
12.144.4-12.n.1.4 $12$ $2$ $2$ $4$ $0$ $1^{2}$
12.144.4-12.o.1.2 $12$ $2$ $2$ $4$ $0$ $1^{2}$
12.144.4-12.o.1.3 $12$ $2$ $2$ $4$ $0$ $1^{2}$
24.144.3-24.q.1.5 $24$ $2$ $2$ $3$ $0$ $1$
24.144.3-24.w.1.8 $24$ $2$ $2$ $3$ $0$ $1$
24.144.3-24.bq.1.5 $24$ $2$ $2$ $3$ $1$ $1$
24.144.3-24.bt.1.5 $24$ $2$ $2$ $3$ $0$ $1$
24.144.4-24.g.1.4 $24$ $2$ $2$ $4$ $1$ $1^{2}$
24.144.4-24.g.1.15 $24$ $2$ $2$ $4$ $1$ $1^{2}$
24.144.4-24.j.1.4 $24$ $2$ $2$ $4$ $1$ $1^{2}$
24.144.4-24.j.1.15 $24$ $2$ $2$ $4$ $1$ $1^{2}$
24.144.4-24.bu.1.5 $24$ $2$ $2$ $4$ $1$ $1^{2}$
24.144.4-24.bu.1.10 $24$ $2$ $2$ $4$ $1$ $1^{2}$
24.144.4-24.bx.1.5 $24$ $2$ $2$ $4$ $0$ $1^{2}$
24.144.4-24.bx.1.10 $24$ $2$ $2$ $4$ $0$ $1^{2}$
36.216.8-36.d.1.3 $36$ $3$ $3$ $8$ $1$ $1^{6}$
36.648.22-36.h.1.2 $36$ $9$ $9$ $22$ $6$ $1^{18}\cdot2$
60.144.3-60.s.1.6 $60$ $2$ $2$ $3$ $0$ $1$
60.144.3-60.t.1.7 $60$ $2$ $2$ $3$ $1$ $1$
60.144.3-60.be.1.7 $60$ $2$ $2$ $3$ $1$ $1$
60.144.3-60.bf.1.7 $60$ $2$ $2$ $3$ $0$ $1$
60.144.4-60.i.1.5 $60$ $2$ $2$ $4$ $0$ $1^{2}$
60.144.4-60.i.1.11 $60$ $2$ $2$ $4$ $0$ $1^{2}$
60.144.4-60.j.1.2 $60$ $2$ $2$ $4$ $0$ $1^{2}$
60.144.4-60.j.1.13 $60$ $2$ $2$ $4$ $0$ $1^{2}$
60.144.4-60.s.1.2 $60$ $2$ $2$ $4$ $2$ $1^{2}$
60.144.4-60.s.1.7 $60$ $2$ $2$ $4$ $2$ $1^{2}$
60.144.4-60.t.1.3 $60$ $2$ $2$ $4$ $0$ $1^{2}$
60.144.4-60.t.1.6 $60$ $2$ $2$ $4$ $0$ $1^{2}$
60.360.14-60.d.1.5 $60$ $5$ $5$ $14$ $5$ $1^{12}$
60.432.15-60.d.1.9 $60$ $6$ $6$ $15$ $1$ $1^{13}$
60.720.27-60.ct.1.3 $60$ $10$ $10$ $27$ $10$ $1^{25}$
84.144.3-84.o.1.6 $84$ $2$ $2$ $3$ $?$ not computed
84.144.3-84.p.1.5 $84$ $2$ $2$ $3$ $?$ not computed
84.144.3-84.ba.1.8 $84$ $2$ $2$ $3$ $?$ not computed
84.144.3-84.bb.1.5 $84$ $2$ $2$ $3$ $?$ not computed
84.144.4-84.i.1.5 $84$ $2$ $2$ $4$ $?$ not computed
84.144.4-84.i.1.11 $84$ $2$ $2$ $4$ $?$ not computed
84.144.4-84.j.1.2 $84$ $2$ $2$ $4$ $?$ not computed
84.144.4-84.j.1.13 $84$ $2$ $2$ $4$ $?$ not computed
84.144.4-84.s.1.3 $84$ $2$ $2$ $4$ $?$ not computed
84.144.4-84.s.1.10 $84$ $2$ $2$ $4$ $?$ not computed
84.144.4-84.t.1.3 $84$ $2$ $2$ $4$ $?$ not computed
84.144.4-84.t.1.10 $84$ $2$ $2$ $4$ $?$ not computed
120.144.3-120.bu.1.14 $120$ $2$ $2$ $3$ $?$ not computed
120.144.3-120.bx.1.15 $120$ $2$ $2$ $3$ $?$ not computed
120.144.3-120.de.1.9 $120$ $2$ $2$ $3$ $?$ not computed
120.144.3-120.dh.1.15 $120$ $2$ $2$ $3$ $?$ not computed
120.144.4-120.u.1.4 $120$ $2$ $2$ $4$ $?$ not computed
120.144.4-120.u.1.30 $120$ $2$ $2$ $4$ $?$ not computed
120.144.4-120.x.1.4 $120$ $2$ $2$ $4$ $?$ not computed
120.144.4-120.x.1.30 $120$ $2$ $2$ $4$ $?$ not computed
120.144.4-120.ck.1.5 $120$ $2$ $2$ $4$ $?$ not computed
120.144.4-120.ck.1.27 $120$ $2$ $2$ $4$ $?$ not computed
120.144.4-120.cn.1.5 $120$ $2$ $2$ $4$ $?$ not computed
120.144.4-120.cn.1.27 $120$ $2$ $2$ $4$ $?$ not computed
132.144.3-132.o.1.6 $132$ $2$ $2$ $3$ $?$ not computed
132.144.3-132.p.1.5 $132$ $2$ $2$ $3$ $?$ not computed
132.144.3-132.ba.1.8 $132$ $2$ $2$ $3$ $?$ not computed
132.144.3-132.bb.1.5 $132$ $2$ $2$ $3$ $?$ not computed
132.144.4-132.i.1.7 $132$ $2$ $2$ $4$ $?$ not computed
132.144.4-132.i.1.9 $132$ $2$ $2$ $4$ $?$ not computed
132.144.4-132.j.1.2 $132$ $2$ $2$ $4$ $?$ not computed
132.144.4-132.j.1.13 $132$ $2$ $2$ $4$ $?$ not computed
132.144.4-132.s.1.3 $132$ $2$ $2$ $4$ $?$ not computed
132.144.4-132.s.1.10 $132$ $2$ $2$ $4$ $?$ not computed
132.144.4-132.t.1.3 $132$ $2$ $2$ $4$ $?$ not computed
132.144.4-132.t.1.10 $132$ $2$ $2$ $4$ $?$ not computed
156.144.3-156.o.1.6 $156$ $2$ $2$ $3$ $?$ not computed
156.144.3-156.p.1.7 $156$ $2$ $2$ $3$ $?$ not computed
156.144.3-156.ba.1.7 $156$ $2$ $2$ $3$ $?$ not computed
156.144.3-156.bb.1.7 $156$ $2$ $2$ $3$ $?$ not computed
156.144.4-156.i.1.5 $156$ $2$ $2$ $4$ $?$ not computed
156.144.4-156.i.1.11 $156$ $2$ $2$ $4$ $?$ not computed
156.144.4-156.j.1.2 $156$ $2$ $2$ $4$ $?$ not computed
156.144.4-156.j.1.13 $156$ $2$ $2$ $4$ $?$ not computed
156.144.4-156.s.1.2 $156$ $2$ $2$ $4$ $?$ not computed
156.144.4-156.s.1.11 $156$ $2$ $2$ $4$ $?$ not computed
156.144.4-156.t.1.3 $156$ $2$ $2$ $4$ $?$ not computed
156.144.4-156.t.1.10 $156$ $2$ $2$ $4$ $?$ not computed
168.144.3-168.bq.1.14 $168$ $2$ $2$ $3$ $?$ not computed
168.144.3-168.bt.1.14 $168$ $2$ $2$ $3$ $?$ not computed
168.144.3-168.da.1.14 $168$ $2$ $2$ $3$ $?$ not computed
168.144.3-168.dd.1.14 $168$ $2$ $2$ $3$ $?$ not computed
168.144.4-168.u.1.3 $168$ $2$ $2$ $4$ $?$ not computed
168.144.4-168.u.1.29 $168$ $2$ $2$ $4$ $?$ not computed
168.144.4-168.x.1.3 $168$ $2$ $2$ $4$ $?$ not computed
168.144.4-168.x.1.29 $168$ $2$ $2$ $4$ $?$ not computed
168.144.4-168.ck.1.6 $168$ $2$ $2$ $4$ $?$ not computed
168.144.4-168.ck.1.28 $168$ $2$ $2$ $4$ $?$ not computed
168.144.4-168.cn.1.6 $168$ $2$ $2$ $4$ $?$ not computed
168.144.4-168.cn.1.28 $168$ $2$ $2$ $4$ $?$ not computed
204.144.3-204.o.1.7 $204$ $2$ $2$ $3$ $?$ not computed
204.144.3-204.p.1.8 $204$ $2$ $2$ $3$ $?$ not computed
204.144.3-204.ba.1.7 $204$ $2$ $2$ $3$ $?$ not computed
204.144.3-204.bb.1.7 $204$ $2$ $2$ $3$ $?$ not computed
204.144.4-204.i.1.1 $204$ $2$ $2$ $4$ $?$ not computed
204.144.4-204.i.1.14 $204$ $2$ $2$ $4$ $?$ not computed
204.144.4-204.j.1.3 $204$ $2$ $2$ $4$ $?$ not computed
204.144.4-204.j.1.9 $204$ $2$ $2$ $4$ $?$ not computed
204.144.4-204.s.1.11 $204$ $2$ $2$ $4$ $?$ not computed
204.144.4-204.s.1.13 $204$ $2$ $2$ $4$ $?$ not computed
204.144.4-204.t.1.10 $204$ $2$ $2$ $4$ $?$ not computed
204.144.4-204.t.1.13 $204$ $2$ $2$ $4$ $?$ not computed
228.144.3-228.o.1.5 $228$ $2$ $2$ $3$ $?$ not computed
228.144.3-228.p.1.7 $228$ $2$ $2$ $3$ $?$ not computed
228.144.3-228.ba.1.8 $228$ $2$ $2$ $3$ $?$ not computed
228.144.3-228.bb.1.7 $228$ $2$ $2$ $3$ $?$ not computed
228.144.4-228.i.1.5 $228$ $2$ $2$ $4$ $?$ not computed
228.144.4-228.i.1.11 $228$ $2$ $2$ $4$ $?$ not computed
228.144.4-228.j.1.2 $228$ $2$ $2$ $4$ $?$ not computed
228.144.4-228.j.1.13 $228$ $2$ $2$ $4$ $?$ not computed
228.144.4-228.s.1.2 $228$ $2$ $2$ $4$ $?$ not computed
228.144.4-228.s.1.11 $228$ $2$ $2$ $4$ $?$ not computed
228.144.4-228.t.1.3 $228$ $2$ $2$ $4$ $?$ not computed
228.144.4-228.t.1.10 $228$ $2$ $2$ $4$ $?$ not computed
264.144.3-264.bq.1.12 $264$ $2$ $2$ $3$ $?$ not computed
264.144.3-264.bt.1.14 $264$ $2$ $2$ $3$ $?$ not computed
264.144.3-264.da.1.12 $264$ $2$ $2$ $3$ $?$ not computed
264.144.3-264.dd.1.12 $264$ $2$ $2$ $3$ $?$ not computed
264.144.4-264.u.1.3 $264$ $2$ $2$ $4$ $?$ not computed
264.144.4-264.u.1.29 $264$ $2$ $2$ $4$ $?$ not computed
264.144.4-264.x.1.3 $264$ $2$ $2$ $4$ $?$ not computed
264.144.4-264.x.1.29 $264$ $2$ $2$ $4$ $?$ not computed
264.144.4-264.ck.1.6 $264$ $2$ $2$ $4$ $?$ not computed
264.144.4-264.ck.1.28 $264$ $2$ $2$ $4$ $?$ not computed
264.144.4-264.cn.1.6 $264$ $2$ $2$ $4$ $?$ not computed
264.144.4-264.cn.1.28 $264$ $2$ $2$ $4$ $?$ not computed
276.144.3-276.o.1.5 $276$ $2$ $2$ $3$ $?$ not computed
276.144.3-276.p.1.7 $276$ $2$ $2$ $3$ $?$ not computed
276.144.3-276.ba.1.8 $276$ $2$ $2$ $3$ $?$ not computed
276.144.3-276.bb.1.7 $276$ $2$ $2$ $3$ $?$ not computed
276.144.4-276.i.1.7 $276$ $2$ $2$ $4$ $?$ not computed
276.144.4-276.i.1.9 $276$ $2$ $2$ $4$ $?$ not computed
276.144.4-276.j.1.2 $276$ $2$ $2$ $4$ $?$ not computed
276.144.4-276.j.1.13 $276$ $2$ $2$ $4$ $?$ not computed
276.144.4-276.s.1.2 $276$ $2$ $2$ $4$ $?$ not computed
276.144.4-276.s.1.11 $276$ $2$ $2$ $4$ $?$ not computed
276.144.4-276.t.1.3 $276$ $2$ $2$ $4$ $?$ not computed
276.144.4-276.t.1.10 $276$ $2$ $2$ $4$ $?$ not computed
312.144.3-312.bq.1.14 $312$ $2$ $2$ $3$ $?$ not computed
312.144.3-312.bt.1.14 $312$ $2$ $2$ $3$ $?$ not computed
312.144.3-312.da.1.5 $312$ $2$ $2$ $3$ $?$ not computed
312.144.3-312.dd.1.14 $312$ $2$ $2$ $3$ $?$ not computed
312.144.4-312.u.1.4 $312$ $2$ $2$ $4$ $?$ not computed
312.144.4-312.u.1.30 $312$ $2$ $2$ $4$ $?$ not computed
312.144.4-312.x.1.4 $312$ $2$ $2$ $4$ $?$ not computed
312.144.4-312.x.1.30 $312$ $2$ $2$ $4$ $?$ not computed
312.144.4-312.ck.1.5 $312$ $2$ $2$ $4$ $?$ not computed
312.144.4-312.ck.1.27 $312$ $2$ $2$ $4$ $?$ not computed
312.144.4-312.cn.1.5 $312$ $2$ $2$ $4$ $?$ not computed
312.144.4-312.cn.1.27 $312$ $2$ $2$ $4$ $?$ not computed