Defining parameters
| Level: | \( N \) | = | \( 245 = 5 \cdot 7^{2} \) |
| Weight: | \( k \) | = | \( 3 \) |
| Nonzero newspaces: | \( 12 \) | ||
| Newform subspaces: | \( 29 \) | ||
| Sturm bound: | \(14112\) | ||
| Trace bound: | \(2\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{3}(\Gamma_1(245))\).
| Total | New | Old | |
|---|---|---|---|
| Modular forms | 4944 | 4284 | 660 |
| Cusp forms | 4464 | 3992 | 472 |
| Eisenstein series | 480 | 292 | 188 |
Trace form
Decomposition of \(S_{3}^{\mathrm{new}}(\Gamma_1(245))\)
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 |
|---|---|---|---|---|
| 245.3.c | \(\chi_{245}(244, \cdot)\) | 245.3.c.a | 12 | 1 |
| 245.3.c.b | 24 | |||
| 245.3.d | \(\chi_{245}(146, \cdot)\) | 245.3.d.a | 12 | 1 |
| 245.3.d.b | 16 | |||
| 245.3.g | \(\chi_{245}(148, \cdot)\) | 245.3.g.a | 12 | 2 |
| 245.3.g.b | 12 | |||
| 245.3.g.c | 12 | |||
| 245.3.g.d | 12 | |||
| 245.3.g.e | 24 | |||
| 245.3.h | \(\chi_{245}(31, \cdot)\) | 245.3.h.a | 4 | 2 |
| 245.3.h.b | 4 | |||
| 245.3.h.c | 12 | |||
| 245.3.h.d | 32 | |||
| 245.3.i | \(\chi_{245}(19, \cdot)\) | 245.3.i.a | 2 | 2 |
| 245.3.i.b | 2 | |||
| 245.3.i.c | 8 | |||
| 245.3.i.d | 12 | |||
| 245.3.i.e | 48 | |||
| 245.3.m | \(\chi_{245}(18, \cdot)\) | 245.3.m.a | 24 | 4 |
| 245.3.m.b | 24 | |||
| 245.3.m.c | 24 | |||
| 245.3.m.d | 24 | |||
| 245.3.m.e | 48 | |||
| 245.3.n | \(\chi_{245}(6, \cdot)\) | 245.3.n.a | 216 | 6 |
| 245.3.o | \(\chi_{245}(34, \cdot)\) | 245.3.o.a | 324 | 6 |
| 245.3.r | \(\chi_{245}(8, \cdot)\) | 245.3.r.a | 648 | 12 |
| 245.3.u | \(\chi_{245}(24, \cdot)\) | 245.3.u.a | 648 | 12 |
| 245.3.v | \(\chi_{245}(26, \cdot)\) | 245.3.v.a | 456 | 12 |
| 245.3.w | \(\chi_{245}(2, \cdot)\) | 245.3.w.a | 1296 | 24 |
Decomposition of \(S_{3}^{\mathrm{old}}(\Gamma_1(245))\) into lower level spaces
\( S_{3}^{\mathrm{old}}(\Gamma_1(245)) \cong \) \(S_{3}^{\mathrm{new}}(\Gamma_1(1))\)\(^{\oplus 6}\)\(\oplus\)\(S_{3}^{\mathrm{new}}(\Gamma_1(5))\)\(^{\oplus 3}\)\(\oplus\)\(S_{3}^{\mathrm{new}}(\Gamma_1(7))\)\(^{\oplus 4}\)\(\oplus\)\(S_{3}^{\mathrm{new}}(\Gamma_1(35))\)\(^{\oplus 2}\)\(\oplus\)\(S_{3}^{\mathrm{new}}(\Gamma_1(49))\)\(^{\oplus 2}\)