Defining parameters
| Level: | \( N \) | \(=\) | \( 1870 = 2 \cdot 5 \cdot 11 \cdot 17 \) |
| Weight: | \( k \) | \(=\) | \( 4 \) |
| Character orbit: | \([\chi]\) | \(=\) | 1870.cb (of order \(20\) and degree \(8\)) |
| Character conductor: | \(\operatorname{cond}(\chi)\) | \(=\) | \( 935 \) |
| Character field: | \(\Q(\zeta_{20})\) | ||
| Sturm bound: | \(1296\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{4}(1870, [\chi])\).
| Total | New | Old | |
|---|---|---|---|
| Modular forms | 7840 | 2592 | 5248 |
| Cusp forms | 7712 | 2592 | 5120 |
| Eisenstein series | 128 | 0 | 128 |
Trace form
Decomposition of \(S_{4}^{\mathrm{new}}(1870, [\chi])\) into newform subspaces
The newforms in this space have not yet been added to the LMFDB.
Decomposition of \(S_{4}^{\mathrm{old}}(1870, [\chi])\) into lower level spaces
\( S_{4}^{\mathrm{old}}(1870, [\chi]) \simeq \) \(S_{4}^{\mathrm{new}}(935, [\chi])\)\(^{\oplus 2}\)