Defining parameters
Level: | \( N \) | \(=\) | \( 8 = 2^{3} \) |
Weight: | \( k \) | \(=\) | \( 10 \) |
Character orbit: | \([\chi]\) | \(=\) | 8.a (trivial) |
Character field: | \(\Q\) | ||
Newform subspaces: | \( 2 \) | ||
Sturm bound: | \(10\) | ||
Trace bound: | \(3\) | ||
Distinguishing \(T_p\): | \(3\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{10}(\Gamma_0(8))\).
Total | New | Old | |
---|---|---|---|
Modular forms | 11 | 2 | 9 |
Cusp forms | 7 | 2 | 5 |
Eisenstein series | 4 | 0 | 4 |
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 |
---|---|
\(+\) | \(1\) |
\(-\) | \(1\) |
Trace form
Decomposition of \(S_{10}^{\mathrm{new}}(\Gamma_0(8))\) into newform subspaces
Label | Dim | $A$ | Field | CM | Traces | A-L signs | $q$-expansion | ||||
---|---|---|---|---|---|---|---|---|---|---|---|
$a_{2}$ | $a_{3}$ | $a_{5}$ | $a_{7}$ | 2 | |||||||
8.10.a.a | $1$ | $4.120$ | \(\Q\) | None | \(0\) | \(-60\) | \(-2074\) | \(-4344\) | $+$ | \(q-60q^{3}-2074q^{5}-4344q^{7}-16083q^{9}+\cdots\) | |
8.10.a.b | $1$ | $4.120$ | \(\Q\) | None | \(0\) | \(68\) | \(1510\) | \(10248\) | $-$ | \(q+68q^{3}+1510q^{5}+10248q^{7}-15059q^{9}+\cdots\) |
Decomposition of \(S_{10}^{\mathrm{old}}(\Gamma_0(8))\) into lower level spaces
\( S_{10}^{\mathrm{old}}(\Gamma_0(8)) \cong \) \(S_{10}^{\mathrm{new}}(\Gamma_0(2))\)\(^{\oplus 3}\)\(\oplus\)\(S_{10}^{\mathrm{new}}(\Gamma_0(4))\)\(^{\oplus 2}\)