Defining parameters
Level: | \( N \) | = | \( 48 = 2^{4} \cdot 3 \) |
Weight: | \( k \) | = | \( 8 \) |
Nonzero newspaces: | \( 4 \) | ||
Newform subspaces: | \( 12 \) | ||
Sturm bound: | \(1024\) | ||
Trace bound: | \(1\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{8}(\Gamma_1(48))\).
Total | New | Old | |
---|---|---|---|
Modular forms | 476 | 193 | 283 |
Cusp forms | 420 | 185 | 235 |
Eisenstein series | 56 | 8 | 48 |
Trace form
Decomposition of \(S_{8}^{\mathrm{new}}(\Gamma_1(48))\)
We only show spaces with even 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 |
---|---|---|---|---|
48.8.a | \(\chi_{48}(1, \cdot)\) | 48.8.a.a | 1 | 1 |
48.8.a.b | 1 | |||
48.8.a.c | 1 | |||
48.8.a.d | 1 | |||
48.8.a.e | 1 | |||
48.8.a.f | 1 | |||
48.8.a.g | 1 | |||
48.8.c | \(\chi_{48}(47, \cdot)\) | 48.8.c.a | 2 | 1 |
48.8.c.b | 4 | |||
48.8.c.c | 8 | |||
48.8.d | \(\chi_{48}(25, \cdot)\) | None | 0 | 1 |
48.8.f | \(\chi_{48}(23, \cdot)\) | None | 0 | 1 |
48.8.j | \(\chi_{48}(13, \cdot)\) | 48.8.j.a | 56 | 2 |
48.8.k | \(\chi_{48}(11, \cdot)\) | 48.8.k.a | 108 | 2 |
Decomposition of \(S_{8}^{\mathrm{old}}(\Gamma_1(48))\) into lower level spaces
\( S_{8}^{\mathrm{old}}(\Gamma_1(48)) \cong \) \(S_{8}^{\mathrm{new}}(\Gamma_1(2))\)\(^{\oplus 8}\)\(\oplus\)\(S_{8}^{\mathrm{new}}(\Gamma_1(3))\)\(^{\oplus 5}\)\(\oplus\)\(S_{8}^{\mathrm{new}}(\Gamma_1(6))\)\(^{\oplus 4}\)\(\oplus\)\(S_{8}^{\mathrm{new}}(\Gamma_1(8))\)\(^{\oplus 4}\)\(\oplus\)\(S_{8}^{\mathrm{new}}(\Gamma_1(12))\)\(^{\oplus 3}\)\(\oplus\)\(S_{8}^{\mathrm{new}}(\Gamma_1(16))\)\(^{\oplus 2}\)\(\oplus\)\(S_{8}^{\mathrm{new}}(\Gamma_1(24))\)\(^{\oplus 2}\)