Defining parameters
Level: | \( N \) | = | \( 48 = 2^{4} \cdot 3 \) |
Weight: | \( k \) | = | \( 27 \) |
Nonzero newspaces: | \( 4 \) | ||
Sturm bound: | \(3456\) | ||
Trace bound: | \(1\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{27}(\Gamma_1(48))\).
Total | New | Old | |
---|---|---|---|
Modular forms | 1692 | 707 | 985 |
Cusp forms | 1636 | 697 | 939 |
Eisenstein series | 56 | 10 | 46 |
Trace form
Decomposition of \(S_{27}^{\mathrm{new}}(\Gamma_1(48))\)
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 |
---|---|---|---|---|
48.27.b | \(\chi_{48}(7, \cdot)\) | None | 0 | 1 |
48.27.e | \(\chi_{48}(17, \cdot)\) | 48.27.e.a | 1 | 1 |
48.27.e.b | 8 | |||
48.27.e.c | 8 | |||
48.27.e.d | 8 | |||
48.27.e.e | 26 | |||
48.27.g | \(\chi_{48}(31, \cdot)\) | 48.27.g.a | 8 | 1 |
48.27.g.b | 8 | |||
48.27.g.c | 10 | |||
48.27.h | \(\chi_{48}(41, \cdot)\) | None | 0 | 1 |
48.27.i | \(\chi_{48}(5, \cdot)\) | n/a | 412 | 2 |
48.27.l | \(\chi_{48}(19, \cdot)\) | n/a | 208 | 2 |
"n/a" means that newforms for that character have not been added to the database yet
Decomposition of \(S_{27}^{\mathrm{old}}(\Gamma_1(48))\) into lower level spaces
\( S_{27}^{\mathrm{old}}(\Gamma_1(48)) \cong \) \(S_{27}^{\mathrm{new}}(\Gamma_1(1))\)\(^{\oplus 10}\)\(\oplus\)\(S_{27}^{\mathrm{new}}(\Gamma_1(2))\)\(^{\oplus 8}\)\(\oplus\)\(S_{27}^{\mathrm{new}}(\Gamma_1(3))\)\(^{\oplus 5}\)\(\oplus\)\(S_{27}^{\mathrm{new}}(\Gamma_1(4))\)\(^{\oplus 6}\)\(\oplus\)\(S_{27}^{\mathrm{new}}(\Gamma_1(6))\)\(^{\oplus 4}\)\(\oplus\)\(S_{27}^{\mathrm{new}}(\Gamma_1(8))\)\(^{\oplus 4}\)\(\oplus\)\(S_{27}^{\mathrm{new}}(\Gamma_1(12))\)\(^{\oplus 3}\)\(\oplus\)\(S_{27}^{\mathrm{new}}(\Gamma_1(16))\)\(^{\oplus 2}\)\(\oplus\)\(S_{27}^{\mathrm{new}}(\Gamma_1(24))\)\(^{\oplus 2}\)\(\oplus\)\(S_{27}^{\mathrm{new}}(\Gamma_1(48))\)\(^{\oplus 1}\)