Defining parameters
Level: | \( N \) | \(=\) | \( 2448 = 2^{4} \cdot 3^{2} \cdot 17 \) |
Weight: | \( k \) | \(=\) | \( 2 \) |
Character orbit: | \([\chi]\) | \(=\) | 2448.o (of order \(2\) and degree \(1\)) |
Character conductor: | \(\operatorname{cond}(\chi)\) | \(=\) | \( 204 \) |
Character field: | \(\Q\) | ||
Newform subspaces: | \( 4 \) | ||
Sturm bound: | \(864\) | ||
Trace bound: | \(5\) | ||
Distinguishing \(T_p\): | \(5\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{2}(2448, [\chi])\).
Total | New | Old | |
---|---|---|---|
Modular forms | 456 | 36 | 420 |
Cusp forms | 408 | 36 | 372 |
Eisenstein series | 48 | 0 | 48 |
Trace form
Decomposition of \(S_{2}^{\mathrm{new}}(2448, [\chi])\) into newform subspaces
Label | Dim | $A$ | Field | CM | Traces | $q$-expansion | |||
---|---|---|---|---|---|---|---|---|---|
$a_{2}$ | $a_{3}$ | $a_{5}$ | $a_{7}$ | ||||||
2448.2.o.a | $4$ | $19.547$ | \(\Q(\sqrt{-2}, \sqrt{-7})\) | None | \(0\) | \(0\) | \(-12\) | \(0\) | \(q-3q^{5}+\beta _{1}q^{7}+\beta _{3}q^{11}+3q^{13}+\cdots\) |
2448.2.o.b | $4$ | $19.547$ | \(\Q(\zeta_{8})\) | \(\Q(\sqrt{-1}) \) | \(0\) | \(0\) | \(0\) | \(0\) | \(q+\zeta_{8}^{3}q^{5}-4q^{13}+(-\zeta_{8}^{2}-2\zeta_{8}^{3})q^{17}+\cdots\) |
2448.2.o.c | $4$ | $19.547$ | \(\Q(\sqrt{-2}, \sqrt{-7})\) | None | \(0\) | \(0\) | \(12\) | \(0\) | \(q+3q^{5}+\beta _{1}q^{7}-\beta _{3}q^{11}+3q^{13}+\cdots\) |
2448.2.o.d | $24$ | $19.547$ | None | \(0\) | \(0\) | \(0\) | \(0\) |
Decomposition of \(S_{2}^{\mathrm{old}}(2448, [\chi])\) into lower level spaces
\( S_{2}^{\mathrm{old}}(2448, [\chi]) \cong \) \(S_{2}^{\mathrm{new}}(204, [\chi])\)\(^{\oplus 6}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(612, [\chi])\)\(^{\oplus 3}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(1224, [\chi])\)\(^{\oplus 2}\)