Defining parameters
Level: | \( N \) | \(=\) | \( 448 = 2^{6} \cdot 7 \) |
Weight: | \( k \) | \(=\) | \( 4 \) |
Character orbit: | \([\chi]\) | \(=\) | 448.e (of order \(2\) and degree \(1\)) |
Character conductor: | \(\operatorname{cond}(\chi)\) | \(=\) | \( 56 \) |
Character field: | \(\Q\) | ||
Newform subspaces: | \( 4 \) | ||
Sturm bound: | \(256\) | ||
Trace bound: | \(9\) | ||
Distinguishing \(T_p\): | \(3\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{4}(448, [\chi])\).
Total | New | Old | |
---|---|---|---|
Modular forms | 204 | 48 | 156 |
Cusp forms | 180 | 48 | 132 |
Eisenstein series | 24 | 0 | 24 |
Trace form
Decomposition of \(S_{4}^{\mathrm{new}}(448, [\chi])\) into newform subspaces
Label | Dim | $A$ | Field | CM | Traces | $q$-expansion | |||
---|---|---|---|---|---|---|---|---|---|
$a_{2}$ | $a_{3}$ | $a_{5}$ | $a_{7}$ | ||||||
448.4.e.a | $8$ | $26.433$ | 8.0.629407744.1 | \(\Q(\sqrt{-14}) \) | \(0\) | \(0\) | \(0\) | \(0\) | \(q+(-2\beta _{3}+\beta _{5})q^{3}+(-\beta _{1}-3\beta _{6})q^{5}+\cdots\) |
448.4.e.b | $8$ | $26.433$ | \(\Q(\zeta_{24})\) | None | \(0\) | \(0\) | \(0\) | \(0\) | \(q+5\zeta_{24}^{2}q^{3}-13\zeta_{24}^{6}q^{5}+(7\zeta_{24}+\cdots)q^{7}+\cdots\) |
448.4.e.c | $8$ | $26.433$ | \(\mathbb{Q}[x]/(x^{8} + \cdots)\) | None | \(0\) | \(0\) | \(0\) | \(0\) | \(q+\beta _{2}q^{3}+3\beta _{3}q^{5}+(2\beta _{1}-\beta _{6})q^{7}+\cdots\) |
448.4.e.d | $24$ | $26.433$ | None | \(0\) | \(0\) | \(0\) | \(0\) |
Decomposition of \(S_{4}^{\mathrm{old}}(448, [\chi])\) into lower level spaces
\( S_{4}^{\mathrm{old}}(448, [\chi]) \cong \) \(S_{4}^{\mathrm{new}}(56, [\chi])\)\(^{\oplus 4}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(112, [\chi])\)\(^{\oplus 3}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(224, [\chi])\)\(^{\oplus 2}\)