Defining parameters
Level: | \( N \) | \(=\) | \( 64 = 2^{6} \) |
Weight: | \( k \) | \(=\) | \( 8 \) |
Character orbit: | \([\chi]\) | \(=\) | 64.b (of order \(2\) and degree \(1\)) |
Character conductor: | \(\operatorname{cond}(\chi)\) | \(=\) | \( 8 \) |
Character field: | \(\Q\) | ||
Newform subspaces: | \( 3 \) | ||
Sturm bound: | \(64\) | ||
Trace bound: | \(1\) | ||
Distinguishing \(T_p\): | \(3\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{8}(64, [\chi])\).
Total | New | Old | |
---|---|---|---|
Modular forms | 62 | 14 | 48 |
Cusp forms | 50 | 14 | 36 |
Eisenstein series | 12 | 0 | 12 |
Trace form
Decomposition of \(S_{8}^{\mathrm{new}}(64, [\chi])\) into newform subspaces
Label | Dim | $A$ | Field | CM | Traces | $q$-expansion | |||
---|---|---|---|---|---|---|---|---|---|
$a_{2}$ | $a_{3}$ | $a_{5}$ | $a_{7}$ | ||||||
64.8.b.a | $2$ | $19.993$ | \(\Q(\sqrt{-1}) \) | \(\Q(\sqrt{-2}) \) | \(0\) | \(0\) | \(0\) | \(0\) | \(q+43iq^{3}-5209q^{9}+4407iq^{11}+\cdots\) |
64.8.b.b | $4$ | $19.993$ | \(\Q(i, \sqrt{435})\) | None | \(0\) | \(0\) | \(0\) | \(0\) | \(q+15\beta _{1}q^{3}+\beta _{3}q^{5}+\beta _{2}q^{7}+1287q^{9}+\cdots\) |
64.8.b.c | $8$ | $19.993$ | 8.0.\(\cdots\).10 | None | \(0\) | \(0\) | \(0\) | \(0\) | \(q+(\beta _{4}+\beta _{6})q^{3}+\beta _{1}q^{5}-\beta _{7}q^{7}+(-617+\cdots)q^{9}+\cdots\) |
Decomposition of \(S_{8}^{\mathrm{old}}(64, [\chi])\) into lower level spaces
\( S_{8}^{\mathrm{old}}(64, [\chi]) \cong \)