Defining parameters
Level: | \( N \) | \(=\) | \( 7 \) |
Weight: | \( k \) | \(=\) | \( 7 \) |
Character orbit: | \([\chi]\) | \(=\) | 7.d (of order \(6\) and degree \(2\)) |
Character conductor: | \(\operatorname{cond}(\chi)\) | \(=\) | \( 7 \) |
Character field: | \(\Q(\zeta_{6})\) | ||
Newform subspaces: | \( 2 \) | ||
Sturm bound: | \(4\) | ||
Trace bound: | \(1\) | ||
Distinguishing \(T_p\): | \(2\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{7}(7, [\chi])\).
Total | New | Old | |
---|---|---|---|
Modular forms | 10 | 10 | 0 |
Cusp forms | 6 | 6 | 0 |
Eisenstein series | 4 | 4 | 0 |
Trace form
Decomposition of \(S_{7}^{\mathrm{new}}(7, [\chi])\) into newform subspaces
Label | Dim | $A$ | Field | CM | Traces | $q$-expansion | |||
---|---|---|---|---|---|---|---|---|---|
$a_{2}$ | $a_{3}$ | $a_{5}$ | $a_{7}$ | ||||||
7.7.d.a | $2$ | $1.610$ | \(\Q(\sqrt{-3}) \) | None | \(12\) | \(-21\) | \(315\) | \(-686\) | \(q+12\zeta_{6}q^{2}+(-7-7\zeta_{6})q^{3}+(-80+\cdots)q^{4}+\cdots\) |
7.7.d.b | $4$ | $1.610$ | \(\Q(\sqrt{2}, \sqrt{-3})\) | None | \(-8\) | \(18\) | \(-150\) | \(280\) | \(q+(-4-4\beta _{1}+\beta _{2}+\beta _{3})q^{2}+(6+3\beta _{1}+\cdots)q^{3}+\cdots\) |