Defining parameters
Level: | \( N \) | \(=\) | \( 69 = 3 \cdot 23 \) |
Weight: | \( k \) | \(=\) | \( 8 \) |
Character orbit: | \([\chi]\) | \(=\) | 69.a (trivial) |
Character field: | \(\Q\) | ||
Newform subspaces: | \( 4 \) | ||
Sturm bound: | \(64\) | ||
Trace bound: | \(1\) | ||
Distinguishing \(T_p\): | \(2\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{8}(\Gamma_0(69))\).
Total | New | Old | |
---|---|---|---|
Modular forms | 58 | 26 | 32 |
Cusp forms | 54 | 26 | 28 |
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.
\(3\) | \(23\) | Fricke | Dim |
---|---|---|---|
\(+\) | \(+\) | $+$ | \(7\) |
\(+\) | \(-\) | $-$ | \(5\) |
\(-\) | \(+\) | $-$ | \(6\) |
\(-\) | \(-\) | $+$ | \(8\) |
Plus space | \(+\) | \(15\) | |
Minus space | \(-\) | \(11\) |
Trace form
Decomposition of \(S_{8}^{\mathrm{new}}(\Gamma_0(69))\) into newform subspaces
Label | Dim | $A$ | Field | CM | Traces | A-L signs | $q$-expansion | |||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
$a_{2}$ | $a_{3}$ | $a_{5}$ | $a_{7}$ | 3 | 23 | |||||||
69.8.a.a | $5$ | $21.555$ | \(\mathbb{Q}[x]/(x^{5} - \cdots)\) | None | \(0\) | \(-135\) | \(-266\) | \(-496\) | $+$ | $-$ | \(q+\beta _{1}q^{2}-3^{3}q^{3}+(54+2\beta _{1}+\beta _{3}+\cdots)q^{4}+\cdots\) | |
69.8.a.b | $6$ | $21.555$ | \(\mathbb{Q}[x]/(x^{6} - \cdots)\) | None | \(-8\) | \(162\) | \(-372\) | \(-1104\) | $-$ | $+$ | \(q+(-1-\beta _{1})q^{2}+3^{3}q^{3}+(29+3\beta _{1}+\cdots)q^{4}+\cdots\) | |
69.8.a.c | $7$ | $21.555$ | \(\mathbb{Q}[x]/(x^{7} - \cdots)\) | None | \(0\) | \(-189\) | \(-516\) | \(1018\) | $+$ | $+$ | \(q+\beta _{1}q^{2}-3^{3}q^{3}+(93+\beta _{1}+\beta _{2})q^{4}+\cdots\) | |
69.8.a.d | $8$ | $21.555$ | \(\mathbb{Q}[x]/(x^{8} - \cdots)\) | None | \(24\) | \(216\) | \(378\) | \(126\) | $-$ | $-$ | \(q+(3-\beta _{1})q^{2}+3^{3}q^{3}+(70-4\beta _{1}+\beta _{2}+\cdots)q^{4}+\cdots\) |
Decomposition of \(S_{8}^{\mathrm{old}}(\Gamma_0(69))\) into lower level spaces
\( S_{8}^{\mathrm{old}}(\Gamma_0(69)) \cong \) \(S_{8}^{\mathrm{new}}(\Gamma_0(3))\)\(^{\oplus 2}\)\(\oplus\)\(S_{8}^{\mathrm{new}}(\Gamma_0(23))\)\(^{\oplus 2}\)