Defining parameters
Level: | \( N \) | \(=\) | \( 660 = 2^{2} \cdot 3 \cdot 5 \cdot 11 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 660.i (of order \(2\) and degree \(1\)) |
Character conductor: | \(\operatorname{cond}(\chi)\) | \(=\) | \( 220 \) |
Character field: | \(\Q\) | ||
Newform subspaces: | \( 2 \) | ||
Sturm bound: | \(288\) | ||
Trace bound: | \(3\) | ||
Distinguishing \(T_p\): | \(23\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{2}(660, [\chi])\).
Total | New | Old | |
---|---|---|---|
Modular forms | 152 | 72 | 80 |
Cusp forms | 136 | 72 | 64 |
Eisenstein series | 16 | 0 | 16 |
Trace form
Decomposition of \(S_{2}^{\mathrm{new}}(660, [\chi])\) into newform subspaces
Label | Dim | $A$ | Field | CM | Traces | $q$-expansion | |||
---|---|---|---|---|---|---|---|---|---|
$a_{2}$ | $a_{3}$ | $a_{5}$ | $a_{7}$ | ||||||
660.2.i.a | $36$ | $5.270$ | None | \(0\) | \(-36\) | \(0\) | \(0\) | ||
660.2.i.b | $36$ | $5.270$ | None | \(0\) | \(36\) | \(0\) | \(0\) |
Decomposition of \(S_{2}^{\mathrm{old}}(660, [\chi])\) into lower level spaces
\( S_{2}^{\mathrm{old}}(660, [\chi]) \cong \) \(S_{2}^{\mathrm{new}}(220, [\chi])\)\(^{\oplus 2}\)