Defining parameters
Level: | \( N \) | \(=\) | \( 8 = 2^{3} \) |
Weight: | \( k \) | \(=\) | \( 3 \) |
Character orbit: | \([\chi]\) | \(=\) | 8.d (of order \(2\) and degree \(1\)) |
Character conductor: | \(\operatorname{cond}(\chi)\) | \(=\) | \( 8 \) |
Character field: | \(\Q\) | ||
Newform subspaces: | \( 1 \) | ||
Sturm bound: | \(3\) | ||
Trace bound: | \(0\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{3}(8, [\chi])\).
Total | New | Old | |
---|---|---|---|
Modular forms | 3 | 3 | 0 |
Cusp forms | 1 | 1 | 0 |
Eisenstein series | 2 | 2 | 0 |
Trace form
Decomposition of \(S_{3}^{\mathrm{new}}(8, [\chi])\) into newform subspaces
Label | Dim | $A$ | Field | CM | Traces | $q$-expansion | |||
---|---|---|---|---|---|---|---|---|---|
$a_{2}$ | $a_{3}$ | $a_{5}$ | $a_{7}$ | ||||||
8.3.d.a | $1$ | $0.218$ | \(\Q\) | \(\Q(\sqrt{-2}) \) | \(-2\) | \(-2\) | \(0\) | \(0\) | \(q-2q^{2}-2q^{3}+4q^{4}+4q^{6}-8q^{8}+\cdots\) |