Defining parameters
| Level: | \( N \) | \(=\) | \( 1656 = 2^{3} \cdot 3^{2} \cdot 23 \) |
| Weight: | \( k \) | \(=\) | \( 2 \) |
| Character orbit: | \([\chi]\) | \(=\) | 1656.ca (of order \(66\) and degree \(20\)) |
| Character conductor: | \(\operatorname{cond}(\chi)\) | \(=\) | \( 828 \) |
| Character field: | \(\Q(\zeta_{66})\) | ||
| Newform subspaces: | \( 0 \) | ||
| Sturm bound: | \(576\) | ||
| Trace bound: | \(0\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{2}(1656, [\chi])\).
| Total | New | Old | |
|---|---|---|---|
| Modular forms | 5920 | 0 | 5920 |
| Cusp forms | 5600 | 0 | 5600 |
| Eisenstein series | 320 | 0 | 320 |
Decomposition of \(S_{2}^{\mathrm{old}}(1656, [\chi])\) into lower level spaces
\( S_{2}^{\mathrm{old}}(1656, [\chi]) \cong \) \(S_{2}^{\mathrm{new}}(828, [\chi])\)\(^{\oplus 2}\)