Defining parameters
Level: | \( N \) | \(=\) | \( 441 = 3^{2} \cdot 7^{2} \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 441.i (of order \(6\) and degree \(2\)) |
Character conductor: | \(\operatorname{cond}(\chi)\) | \(=\) | \( 63 \) |
Character field: | \(\Q(\zeta_{6})\) | ||
Newform subspaces: | \( 4 \) | ||
Sturm bound: | \(112\) | ||
Trace bound: | \(1\) | ||
Distinguishing \(T_p\): | \(2\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{2}(441, [\chi])\).
Total | New | Old | |
---|---|---|---|
Modular forms | 128 | 88 | 40 |
Cusp forms | 96 | 72 | 24 |
Eisenstein series | 32 | 16 | 16 |
Trace form
Decomposition of \(S_{2}^{\mathrm{new}}(441, [\chi])\) into newform subspaces
Label | Dim | $A$ | Field | CM | Traces | $q$-expansion | |||
---|---|---|---|---|---|---|---|---|---|
$a_{2}$ | $a_{3}$ | $a_{5}$ | $a_{7}$ | ||||||
441.2.i.a | $2$ | $3.521$ | \(\Q(\sqrt{-3}) \) | None | \(0\) | \(0\) | \(3\) | \(0\) | \(q+(1-2\zeta_{6})q^{2}+(-1+2\zeta_{6})q^{3}-q^{4}+\cdots\) |
441.2.i.b | $10$ | $3.521$ | 10.0.\(\cdots\).1 | None | \(0\) | \(3\) | \(0\) | \(0\) | \(q+(-\beta _{3}-\beta _{5})q^{2}+(-\beta _{1}+\beta _{7})q^{3}+\cdots\) |
441.2.i.c | $12$ | $3.521$ | \(\mathbb{Q}[x]/(x^{12} - \cdots)\) | None | \(0\) | \(0\) | \(0\) | \(0\) | \(q+(\beta _{3}+\beta _{5})q^{2}+(\beta _{2}-\beta _{9})q^{3}+(-\beta _{1}+\cdots)q^{4}+\cdots\) |
441.2.i.d | $48$ | $3.521$ | None | \(0\) | \(0\) | \(0\) | \(0\) |
Decomposition of \(S_{2}^{\mathrm{old}}(441, [\chi])\) into lower level spaces
\( S_{2}^{\mathrm{old}}(441, [\chi]) \cong \) \(S_{2}^{\mathrm{new}}(63, [\chi])\)\(^{\oplus 2}\)