Defining parameters
Level: | \( N \) | \(=\) | \( 1944 = 2^{3} \cdot 3^{5} \) |
Weight: | \( k \) | \(=\) | \( 1 \) |
Character orbit: | \([\chi]\) | \(=\) | 1944.h (of order \(2\) and degree \(1\)) |
Character conductor: | \(\operatorname{cond}(\chi)\) | \(=\) | \( 24 \) |
Character field: | \(\Q\) | ||
Newform subspaces: | \( 3 \) | ||
Sturm bound: | \(324\) | ||
Trace bound: | \(2\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{1}(1944, [\chi])\).
Total | New | Old | |
---|---|---|---|
Modular forms | 34 | 10 | 24 |
Cusp forms | 16 | 10 | 6 |
Eisenstein series | 18 | 0 | 18 |
The following table gives the dimensions of subspaces with specified projective image type.
\(D_n\) | \(A_4\) | \(S_4\) | \(A_5\) | |
---|---|---|---|---|
Dimension | 6 | 0 | 4 | 0 |
Trace form
Decomposition of \(S_{1}^{\mathrm{new}}(1944, [\chi])\) into newform subspaces
Label | Dim | $A$ | Field | Image | CM | RM | Traces | $q$-expansion | |||
---|---|---|---|---|---|---|---|---|---|---|---|
$a_{2}$ | $a_{3}$ | $a_{5}$ | $a_{7}$ | ||||||||
1944.1.h.a | $3$ | $0.970$ | \(\Q(\zeta_{18})^+\) | $D_{9}$ | \(\Q(\sqrt{-6}) \) | None | \(-3\) | \(0\) | \(0\) | \(0\) | \(q-q^{2}+q^{4}+\beta _{1}q^{5}+(\beta _{1}-\beta _{2})q^{7}+\cdots\) |
1944.1.h.b | $3$ | $0.970$ | \(\Q(\zeta_{18})^+\) | $D_{9}$ | \(\Q(\sqrt{-6}) \) | None | \(3\) | \(0\) | \(0\) | \(0\) | \(q+q^{2}+q^{4}-\beta _{1}q^{5}+(\beta _{1}-\beta _{2})q^{7}+\cdots\) |
1944.1.h.c | $4$ | $0.970$ | \(\Q(\zeta_{8})\) | $S_{4}$ | None | None | \(0\) | \(0\) | \(0\) | \(4\) | \(q-\zeta_{8}q^{2}+\zeta_{8}^{2}q^{4}+(\zeta_{8}-\zeta_{8}^{3})q^{5}+\cdots\) |
Decomposition of \(S_{1}^{\mathrm{old}}(1944, [\chi])\) into lower level spaces
\( S_{1}^{\mathrm{old}}(1944, [\chi]) \simeq \) \(S_{1}^{\mathrm{new}}(216, [\chi])\)\(^{\oplus 3}\)\(\oplus\)\(S_{1}^{\mathrm{new}}(648, [\chi])\)\(^{\oplus 2}\)