Invariants
Level: | $266$ | $\SL_2$-level: | $14$ | Newform level: | $1$ | ||
Index: | $144$ | $\PSL_2$-index: | $144$ | ||||
Genus: | $4 = 1 + \frac{ 144 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 18 }{2}$ | ||||||
Cusps: | $18$ (none of which are rational) | Cusp widths | $2^{9}\cdot14^{9}$ | Cusp orbits | $3^{2}\cdot6^{2}$ | ||
Elliptic points: | $0$ of order $2$ and $0$ of order $3$ | ||||||
Analytic rank: | not computed | ||||||
$\Q$-gonality: | $2 \le \gamma \le 6$ | ||||||
$\overline{\Q}$-gonality: | $2 \le \gamma \le 4$ | ||||||
Rational cusps: | $0$ | ||||||
Rational CM points: | none |
Other labels
Cummins and Pauli (CP) label: | 14B4 |
Level structure
$\GL_2(\Z/266\Z)$-generators: | $\begin{bmatrix}104&193\\251&92\end{bmatrix}$, $\begin{bmatrix}226&45\\191&218\end{bmatrix}$, $\begin{bmatrix}252&139\\51&178\end{bmatrix}$ |
Contains $-I$: | yes |
Quadratic refinements: | 266.288.4-266.be.2.1, 266.288.4-266.be.2.2, 266.288.4-266.be.2.3, 266.288.4-266.be.2.4 |
Cyclic 266-isogeny field degree: | $20$ |
Cyclic 266-torsion field degree: | $2160$ |
Full 266-torsion field degree: | $10342080$ |
Rational points
This modular curve has real points and $\Q_p$ points for $p$ not dividing the level, but no known rational points.
Modular covers
This modular curve minimally covers the modular curves listed below.
Covered curve | Level | Index | Degree | Genus | Rank |
---|---|---|---|---|---|
266.48.2.n.1 | $266$ | $3$ | $3$ | $2$ | $?$ |
266.48.2.r.2 | $266$ | $3$ | $3$ | $2$ | $?$ |
266.72.1.c.2 | $266$ | $2$ | $2$ | $1$ | $?$ |