Defining parameters
Level: | \( N \) | = | \( 115 = 5 \cdot 23 \) |
Weight: | \( k \) | = | \( 7 \) |
Nonzero newspaces: | \( 6 \) | ||
Sturm bound: | \(7392\) | ||
Trace bound: | \(1\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{7}(\Gamma_1(115))\).
Total | New | Old | |
---|---|---|---|
Modular forms | 3256 | 2954 | 302 |
Cusp forms | 3080 | 2830 | 250 |
Eisenstein series | 176 | 124 | 52 |
Trace form
Decomposition of \(S_{7}^{\mathrm{new}}(\Gamma_1(115))\)
We only show spaces with odd parity, since no modular forms exist when this condition is not satisfied. Within each space \( S_k^{\mathrm{new}}(N, \chi) \) we list available newforms together with their dimension.
Label | \(\chi\) | Newforms | Dimension | \(\chi\) degree |
---|---|---|---|---|
115.7.c | \(\chi_{115}(114, \cdot)\) | 115.7.c.a | 1 | 1 |
115.7.c.b | 1 | |||
115.7.c.c | 68 | |||
115.7.d | \(\chi_{115}(91, \cdot)\) | 115.7.d.a | 48 | 1 |
115.7.f | \(\chi_{115}(47, \cdot)\) | n/a | 132 | 2 |
115.7.h | \(\chi_{115}(11, \cdot)\) | n/a | 480 | 10 |
115.7.i | \(\chi_{115}(14, \cdot)\) | n/a | 700 | 10 |
115.7.k | \(\chi_{115}(2, \cdot)\) | n/a | 1400 | 20 |
"n/a" means that newforms for that character have not been added to the database yet
Decomposition of \(S_{7}^{\mathrm{old}}(\Gamma_1(115))\) into lower level spaces
\( S_{7}^{\mathrm{old}}(\Gamma_1(115)) \cong \) \(S_{7}^{\mathrm{new}}(\Gamma_1(5))\)\(^{\oplus 2}\)\(\oplus\)\(S_{7}^{\mathrm{new}}(\Gamma_1(23))\)\(^{\oplus 2}\)