Defining parameters
| Level: | \( N \) | \(=\) | \( 1280 = 2^{8} \cdot 5 \) |
| Weight: | \( k \) | \(=\) | \( 4 \) |
| Character orbit: | \([\chi]\) | \(=\) | 1280.bo (of order \(32\) and degree \(16\)) |
| Character conductor: | \(\operatorname{cond}(\chi)\) | \(=\) | \( 640 \) |
| Character field: | \(\Q(\zeta_{32})\) | ||
| Newform subspaces: | \( 0 \) | ||
| Sturm bound: | \(768\) | ||
| Trace bound: | \(0\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{4}(1280, [\chi])\).
| Total | New | Old | |
|---|---|---|---|
| Modular forms | 9280 | 0 | 9280 |
| Cusp forms | 9152 | 0 | 9152 |
| Eisenstein series | 128 | 0 | 128 |
Decomposition of \(S_{4}^{\mathrm{old}}(1280, [\chi])\) into lower level spaces
\( S_{4}^{\mathrm{old}}(1280, [\chi]) \cong \) \(S_{4}^{\mathrm{new}}(640, [\chi])\)\(^{\oplus 2}\)