Defining parameters
Level: | \( N \) | \(=\) | \( 49 = 7^{2} \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 49.e (of order \(7\) and degree \(6\)) |
Character conductor: | \(\operatorname{cond}(\chi)\) | \(=\) | \( 49 \) |
Character field: | \(\Q(\zeta_{7})\) | ||
Newform subspaces: | \( 2 \) | ||
Sturm bound: | \(9\) | ||
Trace bound: | \(1\) | ||
Distinguishing \(T_p\): | \(2\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{2}(49, [\chi])\).
Total | New | Old | |
---|---|---|---|
Modular forms | 30 | 30 | 0 |
Cusp forms | 18 | 18 | 0 |
Eisenstein series | 12 | 12 | 0 |
Trace form
Decomposition of \(S_{2}^{\mathrm{new}}(49, [\chi])\) into newform subspaces
Label | Dim | $A$ | Field | CM | Traces | $q$-expansion | |||
---|---|---|---|---|---|---|---|---|---|
$a_{2}$ | $a_{3}$ | $a_{5}$ | $a_{7}$ | ||||||
49.2.e.a | $6$ | $0.391$ | \(\Q(\zeta_{14})\) | None | \(-3\) | \(-3\) | \(6\) | \(7\) | \(q+(-1+\zeta_{14}-\zeta_{14}^{4}+\zeta_{14}^{5})q^{2}+\cdots\) |
49.2.e.b | $12$ | $0.391$ | \(\Q(\zeta_{21})\) | None | \(-2\) | \(0\) | \(-7\) | \(-7\) | \(q+(\zeta_{21}^{2}+\zeta_{21}^{4}-\zeta_{21}^{5}-\zeta_{21}^{9}+\zeta_{21}^{11})q^{2}+\cdots\) |