Defining parameters
| Level: | \( N \) | = | \( 105 = 3 \cdot 5 \cdot 7 \) |
| Weight: | \( k \) | = | \( 10 \) |
| Nonzero newspaces: | \( 12 \) | ||
| Sturm bound: | \(7680\) | ||
| Trace bound: | \(4\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{10}(\Gamma_1(105))\).
| Total | New | Old | |
|---|---|---|---|
| Modular forms | 3552 | 2304 | 1248 |
| Cusp forms | 3360 | 2248 | 1112 |
| Eisenstein series | 192 | 56 | 136 |
Trace form
Decomposition of \(S_{10}^{\mathrm{new}}(\Gamma_1(105))\)
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 |
|---|---|---|---|---|
| 105.10.a | \(\chi_{105}(1, \cdot)\) | 105.10.a.a | 4 | 1 |
| 105.10.a.b | 4 | |||
| 105.10.a.c | 4 | |||
| 105.10.a.d | 4 | |||
| 105.10.a.e | 4 | |||
| 105.10.a.f | 4 | |||
| 105.10.a.g | 6 | |||
| 105.10.a.h | 6 | |||
| 105.10.b | \(\chi_{105}(41, \cdot)\) | 105.10.b.a | 48 | 1 |
| 105.10.b.b | 48 | |||
| 105.10.d | \(\chi_{105}(64, \cdot)\) | 105.10.d.a | 26 | 1 |
| 105.10.d.b | 30 | |||
| 105.10.g | \(\chi_{105}(104, \cdot)\) | n/a | 140 | 1 |
| 105.10.i | \(\chi_{105}(16, \cdot)\) | 105.10.i.a | 22 | 2 |
| 105.10.i.b | 22 | |||
| 105.10.i.c | 26 | |||
| 105.10.i.d | 26 | |||
| 105.10.j | \(\chi_{105}(8, \cdot)\) | n/a | 216 | 2 |
| 105.10.m | \(\chi_{105}(13, \cdot)\) | n/a | 144 | 2 |
| 105.10.p | \(\chi_{105}(59, \cdot)\) | n/a | 280 | 2 |
| 105.10.q | \(\chi_{105}(4, \cdot)\) | n/a | 144 | 2 |
| 105.10.s | \(\chi_{105}(26, \cdot)\) | n/a | 192 | 2 |
| 105.10.u | \(\chi_{105}(52, \cdot)\) | n/a | 288 | 4 |
| 105.10.x | \(\chi_{105}(2, \cdot)\) | n/a | 560 | 4 |
"n/a" means that newforms for that character have not been added to the database yet
Decomposition of \(S_{10}^{\mathrm{old}}(\Gamma_1(105))\) into lower level spaces
\( S_{10}^{\mathrm{old}}(\Gamma_1(105)) \cong \) \(S_{10}^{\mathrm{new}}(\Gamma_1(1))\)\(^{\oplus 8}\)\(\oplus\)\(S_{10}^{\mathrm{new}}(\Gamma_1(3))\)\(^{\oplus 4}\)\(\oplus\)\(S_{10}^{\mathrm{new}}(\Gamma_1(5))\)\(^{\oplus 4}\)\(\oplus\)\(S_{10}^{\mathrm{new}}(\Gamma_1(7))\)\(^{\oplus 4}\)\(\oplus\)\(S_{10}^{\mathrm{new}}(\Gamma_1(15))\)\(^{\oplus 2}\)\(\oplus\)\(S_{10}^{\mathrm{new}}(\Gamma_1(21))\)\(^{\oplus 2}\)\(\oplus\)\(S_{10}^{\mathrm{new}}(\Gamma_1(35))\)\(^{\oplus 2}\)