Defining parameters
Level: | \( N \) | \(=\) | \( 360 = 2^{3} \cdot 3^{2} \cdot 5 \) |
Weight: | \( k \) | \(=\) | \( 4 \) |
Character orbit: | \([\chi]\) | \(=\) | 360.m (of order \(2\) and degree \(1\)) |
Character conductor: | \(\operatorname{cond}(\chi)\) | \(=\) | \( 120 \) |
Character field: | \(\Q\) | ||
Newform subspaces: | \( 3 \) | ||
Sturm bound: | \(288\) | ||
Trace bound: | \(7\) | ||
Distinguishing \(T_p\): | \(7\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{4}(360, [\chi])\).
Total | New | Old | |
---|---|---|---|
Modular forms | 224 | 72 | 152 |
Cusp forms | 208 | 72 | 136 |
Eisenstein series | 16 | 0 | 16 |
Trace form
Decomposition of \(S_{4}^{\mathrm{new}}(360, [\chi])\) into newform subspaces
Label | Dim | $A$ | Field | CM | Traces | $q$-expansion | |||
---|---|---|---|---|---|---|---|---|---|
$a_{2}$ | $a_{3}$ | $a_{5}$ | $a_{7}$ | ||||||
360.4.m.a | $4$ | $21.241$ | \(\Q(\sqrt{-2}, \sqrt{-5})\) | \(\Q(\sqrt{-10}) \) | \(0\) | \(0\) | \(0\) | \(-104\) | \(q+2\beta _{1}q^{2}-8q^{4}+5\beta _{2}q^{5}+(-26+\cdots)q^{7}+\cdots\) |
360.4.m.b | $4$ | $21.241$ | \(\Q(\sqrt{-2}, \sqrt{-5})\) | \(\Q(\sqrt{-10}) \) | \(0\) | \(0\) | \(0\) | \(104\) | \(q+2\beta _{1}q^{2}-8q^{4}-5\beta _{2}q^{5}+(26-\beta _{3})q^{7}+\cdots\) |
360.4.m.c | $64$ | $21.241$ | None | \(0\) | \(0\) | \(0\) | \(0\) |
Decomposition of \(S_{4}^{\mathrm{old}}(360, [\chi])\) into lower level spaces
\( S_{4}^{\mathrm{old}}(360, [\chi]) \cong \) \(S_{4}^{\mathrm{new}}(120, [\chi])\)\(^{\oplus 2}\)