Defining parameters
Level: | \( N \) | \(=\) | \( 45 = 3^{2} \cdot 5 \) |
Weight: | \( k \) | \(=\) | \( 22 \) |
Character orbit: | \([\chi]\) | \(=\) | 45.a (trivial) |
Character field: | \(\Q\) | ||
Newform subspaces: | \( 9 \) | ||
Sturm bound: | \(132\) | ||
Trace bound: | \(2\) | ||
Distinguishing \(T_p\): | \(2\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{22}(\Gamma_0(45))\).
Total | New | Old | |
---|---|---|---|
Modular forms | 130 | 35 | 95 |
Cusp forms | 122 | 35 | 87 |
Eisenstein series | 8 | 0 | 8 |
The following table gives the dimensions of the cuspidal new subspaces with specified eigenvalues for the Atkin-Lehner operators and the Fricke involution.
\(3\) | \(5\) | Fricke | Dim |
---|---|---|---|
\(+\) | \(+\) | $+$ | \(7\) |
\(+\) | \(-\) | $-$ | \(7\) |
\(-\) | \(+\) | $-$ | \(11\) |
\(-\) | \(-\) | $+$ | \(10\) |
Plus space | \(+\) | \(17\) | |
Minus space | \(-\) | \(18\) |
Trace form
Decomposition of \(S_{22}^{\mathrm{new}}(\Gamma_0(45))\) into newform subspaces
Decomposition of \(S_{22}^{\mathrm{old}}(\Gamma_0(45))\) into lower level spaces
\( S_{22}^{\mathrm{old}}(\Gamma_0(45)) \cong \) \(S_{22}^{\mathrm{new}}(\Gamma_0(1))\)\(^{\oplus 6}\)\(\oplus\)\(S_{22}^{\mathrm{new}}(\Gamma_0(3))\)\(^{\oplus 4}\)\(\oplus\)\(S_{22}^{\mathrm{new}}(\Gamma_0(5))\)\(^{\oplus 3}\)\(\oplus\)\(S_{22}^{\mathrm{new}}(\Gamma_0(9))\)\(^{\oplus 2}\)\(\oplus\)\(S_{22}^{\mathrm{new}}(\Gamma_0(15))\)\(^{\oplus 2}\)