Defining parameters
Level: | \( N \) | \(=\) | \( 115 = 5 \cdot 23 \) |
Weight: | \( k \) | \(=\) | \( 4 \) |
Character orbit: | \([\chi]\) | \(=\) | 115.a (trivial) |
Character field: | \(\Q\) | ||
Newform subspaces: | \( 6 \) | ||
Sturm bound: | \(48\) | ||
Trace bound: | \(2\) | ||
Distinguishing \(T_p\): | \(2\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{4}(\Gamma_0(115))\).
Total | New | Old | |
---|---|---|---|
Modular forms | 38 | 22 | 16 |
Cusp forms | 34 | 22 | 12 |
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.
\(5\) | \(23\) | Fricke | Dim |
---|---|---|---|
\(+\) | \(+\) | $+$ | \(5\) |
\(+\) | \(-\) | $-$ | \(6\) |
\(-\) | \(+\) | $-$ | \(3\) |
\(-\) | \(-\) | $+$ | \(8\) |
Plus space | \(+\) | \(13\) | |
Minus space | \(-\) | \(9\) |
Trace form
Decomposition of \(S_{4}^{\mathrm{new}}(\Gamma_0(115))\) into newform subspaces
Label | Dim | $A$ | Field | CM | Traces | A-L signs | $q$-expansion | |||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
$a_{2}$ | $a_{3}$ | $a_{5}$ | $a_{7}$ | 5 | 23 | |||||||
115.4.a.a | $1$ | $6.785$ | \(\Q\) | None | \(1\) | \(4\) | \(-5\) | \(-32\) | $+$ | $-$ | \(q+q^{2}+4q^{3}-7q^{4}-5q^{5}+4q^{6}+\cdots\) | |
115.4.a.b | $1$ | $6.785$ | \(\Q\) | None | \(2\) | \(-3\) | \(5\) | \(-2\) | $-$ | $+$ | \(q+2q^{2}-3q^{3}-4q^{4}+5q^{5}-6q^{6}+\cdots\) | |
115.4.a.c | $2$ | $6.785$ | \(\Q(\sqrt{109}) \) | None | \(-6\) | \(-3\) | \(10\) | \(1\) | $-$ | $+$ | \(q-3q^{2}+(-1-\beta )q^{3}+q^{4}+5q^{5}+\cdots\) | |
115.4.a.d | $5$ | $6.785$ | \(\mathbb{Q}[x]/(x^{5} - \cdots)\) | None | \(-5\) | \(-6\) | \(-25\) | \(-15\) | $+$ | $-$ | \(q+(-1+\beta _{1})q^{2}+(-1-\beta _{2}-\beta _{3}-\beta _{4})q^{3}+\cdots\) | |
115.4.a.e | $5$ | $6.785$ | \(\mathbb{Q}[x]/(x^{5} - \cdots)\) | None | \(6\) | \(4\) | \(-25\) | \(-3\) | $+$ | $+$ | \(q+(1+\beta _{1})q^{2}+(1+\beta _{1}-\beta _{2}+\beta _{3})q^{3}+\cdots\) | |
115.4.a.f | $8$ | $6.785$ | \(\mathbb{Q}[x]/(x^{8} - \cdots)\) | None | \(6\) | \(0\) | \(40\) | \(11\) | $-$ | $-$ | \(q+(1-\beta _{1})q^{2}+\beta _{6}q^{3}+(5+\beta _{2})q^{4}+\cdots\) |
Decomposition of \(S_{4}^{\mathrm{old}}(\Gamma_0(115))\) into lower level spaces
\( S_{4}^{\mathrm{old}}(\Gamma_0(115)) \cong \) \(S_{4}^{\mathrm{new}}(\Gamma_0(5))\)\(^{\oplus 2}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(\Gamma_0(23))\)\(^{\oplus 2}\)