Defining parameters
| Level: | \( N \) | \(=\) | \( 25 = 5^{2} \) |
| Weight: | \( k \) | \(=\) | \( 22 \) |
| Character orbit: | \([\chi]\) | \(=\) | 25.a (trivial) |
| Character field: | \(\Q\) | ||
| Newform subspaces: | \( 6 \) | ||
| Sturm bound: | \(55\) | ||
| Trace bound: | \(2\) | ||
| Distinguishing \(T_p\): | \(2\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{22}(\Gamma_0(25))\).
| Total | New | Old | |
|---|---|---|---|
| Modular forms | 55 | 35 | 20 |
| Cusp forms | 49 | 32 | 17 |
| Eisenstein series | 6 | 3 | 3 |
The following table gives the dimensions of the cuspidal new subspaces with specified eigenvalues for the Atkin-Lehner operators and the Fricke involution.
| \(5\) | Total | Cusp | Eisenstein | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| All | New | Old | All | New | Old | All | New | Old | ||||
| \(+\) | \(27\) | \(16\) | \(11\) | \(24\) | \(15\) | \(9\) | \(3\) | \(1\) | \(2\) | |||
| \(-\) | \(28\) | \(19\) | \(9\) | \(25\) | \(17\) | \(8\) | \(3\) | \(2\) | \(1\) | |||
Trace form
Decomposition of \(S_{22}^{\mathrm{new}}(\Gamma_0(25))\) into newform subspaces
Decomposition of \(S_{22}^{\mathrm{old}}(\Gamma_0(25))\) into lower level spaces
\( S_{22}^{\mathrm{old}}(\Gamma_0(25)) \simeq \) \(S_{22}^{\mathrm{new}}(\Gamma_0(1))\)\(^{\oplus 3}\)\(\oplus\)\(S_{22}^{\mathrm{new}}(\Gamma_0(5))\)\(^{\oplus 2}\)