Defining parameters
Level: | \( N \) | \(=\) | \( 2 \) |
Weight: | \( k \) | \(=\) | \( 48 \) |
Character orbit: | \([\chi]\) | \(=\) | 2.a (trivial) |
Character field: | \(\Q\) | ||
Newform subspaces: | \( 2 \) | ||
Sturm bound: | \(12\) | ||
Trace bound: | \(1\) | ||
Distinguishing \(T_p\): | \(3\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{48}(\Gamma_0(2))\).
Total | New | Old | |
---|---|---|---|
Modular forms | 13 | 3 | 10 |
Cusp forms | 11 | 3 | 8 |
Eisenstein series | 2 | 0 | 2 |
The following table gives the dimensions of the cuspidal new subspaces with specified eigenvalues for the Atkin-Lehner operators and the Fricke involution.
\(2\) | Dim |
---|---|
\(+\) | \(2\) |
\(-\) | \(1\) |
Trace form
Decomposition of \(S_{48}^{\mathrm{new}}(\Gamma_0(2))\) into newform subspaces
Label | Dim | $A$ | Field | CM | Traces | A-L signs | $q$-expansion | ||||
---|---|---|---|---|---|---|---|---|---|---|---|
$a_{2}$ | $a_{3}$ | $a_{5}$ | $a_{7}$ | 2 | |||||||
2.48.a.a | $1$ | $27.982$ | \(\Q\) | None | \(8388608\) | \(-196634580372\) | \(20\!\cdots\!50\) | \(-51\!\cdots\!96\) | $-$ | \(q+2^{23}q^{2}-196634580372q^{3}+2^{46}q^{4}+\cdots\) | |
2.48.a.b | $2$ | $27.982$ | \(\mathbb{Q}[x]/(x^{2} - \cdots)\) | None | \(-16777216\) | \(122289844824\) | \(18\!\cdots\!40\) | \(16\!\cdots\!32\) | $+$ | \(q-2^{23}q^{2}+(61144922412-5\beta )q^{3}+\cdots\) |
Decomposition of \(S_{48}^{\mathrm{old}}(\Gamma_0(2))\) into lower level spaces
\( S_{48}^{\mathrm{old}}(\Gamma_0(2)) \cong \) \(S_{48}^{\mathrm{new}}(\Gamma_0(1))\)\(^{\oplus 2}\)