Defining parameters
Level: | \( N \) | \(=\) | \( 7 \) |
Weight: | \( k \) | \(=\) | \( 9 \) |
Character orbit: | \([\chi]\) | \(=\) | 7.b (of order \(2\) and degree \(1\)) |
Character conductor: | \(\operatorname{cond}(\chi)\) | \(=\) | \( 7 \) |
Character field: | \(\Q\) | ||
Newform subspaces: | \( 2 \) | ||
Sturm bound: | \(6\) | ||
Trace bound: | \(1\) | ||
Distinguishing \(T_p\): | \(2\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{9}(7, [\chi])\).
Total | New | Old | |
---|---|---|---|
Modular forms | 7 | 7 | 0 |
Cusp forms | 5 | 5 | 0 |
Eisenstein series | 2 | 2 | 0 |
Trace form
Decomposition of \(S_{9}^{\mathrm{new}}(7, [\chi])\) into newform subspaces
Label | Dim | $A$ | Field | CM | Traces | $q$-expansion | |||
---|---|---|---|---|---|---|---|---|---|
$a_{2}$ | $a_{3}$ | $a_{5}$ | $a_{7}$ | ||||||
7.9.b.a | $1$ | $2.852$ | \(\Q\) | \(\Q(\sqrt{-7}) \) | \(-31\) | \(0\) | \(0\) | \(2401\) | \(q-31q^{2}+705q^{4}+7^{4}q^{7}-13919q^{8}+\cdots\) |
7.9.b.b | $4$ | $2.852$ | \(\mathbb{Q}[x]/(x^{4} + \cdots)\) | None | \(32\) | \(0\) | \(0\) | \(1428\) | \(q+(8+\beta _{3})q^{2}-\beta _{1}q^{3}+(-8+2^{4}\beta _{3})q^{4}+\cdots\) |