Invariants
| Level: | $25$ | $\SL_2$-level: | $25$ | Newform level: | $125$ | ||
| Index: | $300$ | $\PSL_2$-index: | $300$ | ||||
| Genus: | $16 = 1 + \frac{ 300 }{12} - \frac{ 0 }{4} - \frac{ 0 }{3} - \frac{ 20 }{2}$ | ||||||
| Cusps: | $20$ (of which $2$ are rational) | Cusp widths | $5^{10}\cdot25^{10}$ | Cusp orbits | $1^{2}\cdot2\cdot4^{4}$ | ||
| Elliptic points: | $0$ of order $2$ and $0$ of order $3$ | ||||||
| Analytic rank: | $2$ | ||||||
| $\Q$-gonality: | $5$ | ||||||
| $\overline{\Q}$-gonality: | $5$ | ||||||
| Rational cusps: | $2$ | ||||||
| Rational CM points: | none |
Other labels
| Cummins and Pauli (CP) label: | 25A16 |
| Rouse, Sutherland, and Zureick-Brown (RSZB) label: | 25.300.16.1 |
Level structure
| $\GL_2(\Z/25\Z)$-generators: | $\begin{bmatrix}9&10\\0&6\end{bmatrix}$, $\begin{bmatrix}16&20\\0&13\end{bmatrix}$ |
| $\GL_2(\Z/25\Z)$-subgroup: | $D_5.C_{10}^2$ |
| Contains $-I$: | yes |
| Quadratic refinements: | 25.600.16-25.a.1.1, 25.600.16-25.a.1.2, 50.600.16-25.a.1.1, 50.600.16-25.a.1.2 |
| Cyclic 25-isogeny field degree: | $1$ |
| Cyclic 25-torsion field degree: | $10$ |
| Full 25-torsion field degree: | $1000$ |
Jacobian
| Conductor: | $5^{48}$ |
| Simple: | no |
| Squarefree: | yes |
| Decomposition: | $2^{2}\cdot4^{3}$ |
| Newforms: | 125.2.a.a, 125.2.a.b, 125.2.a.c, 125.2.b.a, 125.2.b.b |
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 |
|---|---|---|---|---|---|---|
| 5.60.0.a.1 | $5$ | $5$ | $5$ | $0$ | $0$ | full Jacobian |
| 25.60.0.a.1 | $25$ | $5$ | $5$ | $0$ | $0$ | full Jacobian |
| 25.150.8.a.1 | $25$ | $2$ | $2$ | $8$ | $2$ | $4^{2}$ |
This modular curve is minimally covered by the modular curves in the database listed below.
| Covering curve | Level | Index | Degree | Genus | Rank | Kernel decomposition |
|---|---|---|---|---|---|---|
| 25.1500.76.a.1 | $25$ | $5$ | $5$ | $76$ | $2$ | $4^{3}\cdot8^{4}\cdot16$ |
| 25.1500.76.b.2 | $25$ | $5$ | $5$ | $76$ | $2$ | $4^{3}\cdot8^{4}\cdot16$ |
| 25.1500.76.c.1 | $25$ | $5$ | $5$ | $76$ | $2$ | $4^{3}\cdot8^{4}\cdot16$ |
| 25.1500.76.d.2 | $25$ | $5$ | $5$ | $76$ | $2$ | $4^{3}\cdot8^{4}\cdot16$ |
| 25.1500.76.e.1 | $25$ | $5$ | $5$ | $76$ | $14$ | $2^{6}\cdot4^{2}\cdot8^{5}$ |
| 25.1500.96.e.1 | $25$ | $5$ | $5$ | $96$ | $18$ | $2^{6}\cdot4^{5}\cdot8^{4}\cdot16$ |
| 50.600.41.a.2 | $50$ | $2$ | $2$ | $41$ | $4$ | $1^{5}\cdot2^{4}\cdot4^{3}$ |
| 50.600.41.b.2 | $50$ | $2$ | $2$ | $41$ | $4$ | $1^{5}\cdot2^{4}\cdot4^{3}$ |
| 50.900.56.a.2 | $50$ | $3$ | $3$ | $56$ | $6$ | $1^{4}\cdot2^{8}\cdot4^{5}$ |
| 125.1500.96.a.1 | $125$ | $5$ | $5$ | $96$ | $?$ | not computed |