Invariants
Level: | $30$ | $\SL_2$-level: | $30$ | Newform level: | $900$ | ||
Index: | $720$ | $\PSL_2$-index: | $360$ | ||||
Genus: | $25 = 1 + \frac{ 360 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 12 }{2}$ | ||||||
Cusps: | $12$ (of which $2$ are rational) | Cusp widths | $30^{12}$ | Cusp orbits | $1^{2}\cdot2\cdot4^{2}$ | ||
Elliptic points: | $0$ of order $2$ and $0$ of order $3$ | ||||||
Analytic rank: | $2$ | ||||||
$\Q$-gonality: | $4 \le \gamma \le 6$ | ||||||
$\overline{\Q}$-gonality: | $4 \le \gamma \le 6$ | ||||||
Rational cusps: | $2$ | ||||||
Rational CM points: | none |
Other labels
Rouse, Sutherland, and Zureick-Brown (RSZB) label: | 30.720.25.9 |
Level structure
$\GL_2(\Z/30\Z)$-generators: | $\begin{bmatrix}11&15\\15&16\end{bmatrix}$, $\begin{bmatrix}17&5\\5&16\end{bmatrix}$, $\begin{bmatrix}29&20\\5&1\end{bmatrix}$ |
$\GL_2(\Z/30\Z)$-subgroup: | $C_4.(C_4\times D_6)$ |
Contains $-I$: | no $\quad$ (see 30.360.25.ea.1 for the level structure with $-I$) |
Cyclic 30-isogeny field degree: | $12$ |
Cyclic 30-torsion field degree: | $24$ |
Full 30-torsion field degree: | $192$ |
Jacobian
Conductor: | $2^{30}\cdot3^{30}\cdot5^{41}$ |
Simple: | no |
Squarefree: | no |
Decomposition: | $1^{9}\cdot2^{8}$ |
Newforms: | 20.2.a.a, 45.2.b.a$^{2}$, 60.2.d.a$^{2}$, 100.2.a.a$^{2}$, 100.2.c.a, 225.2.a.c, 225.2.a.d, 225.2.a.f, 225.2.b.c, 300.2.a.a, 300.2.a.b, 300.2.a.c, 300.2.a.d, 300.2.d.a |
Rational points
This modular curve has 2 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 | Kernel decomposition |
---|---|---|---|---|---|---|
15.360.10-15.b.1.5 | $15$ | $2$ | $2$ | $10$ | $1$ | $1^{7}\cdot2^{4}$ |
30.360.10-15.b.1.7 | $30$ | $2$ | $2$ | $10$ | $1$ | $1^{7}\cdot2^{4}$ |
30.144.5-30.bj.1.7 | $30$ | $5$ | $5$ | $5$ | $0$ | $1^{8}\cdot2^{6}$ |
30.144.5-30.bj.2.7 | $30$ | $5$ | $5$ | $5$ | $0$ | $1^{8}\cdot2^{6}$ |
This modular curve is minimally covered by the modular curves in the database listed below.
Covering curve | Level | Index | Degree | Genus | Rank | Kernel decomposition |
---|---|---|---|---|---|---|
30.1440.49-30.be.1.4 | $30$ | $2$ | $2$ | $49$ | $3$ | $1^{14}\cdot2^{5}$ |
30.1440.49-30.co.1.3 | $30$ | $2$ | $2$ | $49$ | $5$ | $1^{14}\cdot2^{5}$ |
30.1440.49-30.fb.1.3 | $30$ | $2$ | $2$ | $49$ | $6$ | $1^{14}\cdot2^{5}$ |
30.1440.49-30.fh.1.2 | $30$ | $2$ | $2$ | $49$ | $3$ | $1^{14}\cdot2^{5}$ |
30.2160.73-30.cm.1.4 | $30$ | $3$ | $3$ | $73$ | $4$ | $1^{22}\cdot2^{13}$ |
60.1440.49-60.pl.1.10 | $60$ | $2$ | $2$ | $49$ | $5$ | $1^{14}\cdot2^{5}$ |
60.1440.49-60.yv.1.7 | $60$ | $2$ | $2$ | $49$ | $10$ | $1^{14}\cdot2^{5}$ |
60.1440.49-60.cay.1.7 | $60$ | $2$ | $2$ | $49$ | $11$ | $1^{14}\cdot2^{5}$ |
60.1440.49-60.cck.1.7 | $60$ | $2$ | $2$ | $49$ | $5$ | $1^{14}\cdot2^{5}$ |
60.2880.109-60.emg.1.14 | $60$ | $4$ | $4$ | $109$ | $21$ | $1^{40}\cdot2^{22}$ |