Defining parameters
| Level: | \( N \) | = | \( 270 = 2 \cdot 3^{3} \cdot 5 \) |
| Weight: | \( k \) | = | \( 11 \) |
| Nonzero newspaces: | \( 9 \) | ||
| Sturm bound: | \(42768\) | ||
| Trace bound: | \(4\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{11}(\Gamma_1(270))\).
| Total | New | Old | |
|---|---|---|---|
| Modular forms | 19680 | 4692 | 14988 |
| Cusp forms | 19200 | 4692 | 14508 |
| Eisenstein series | 480 | 0 | 480 |
Trace form
Decomposition of \(S_{11}^{\mathrm{new}}(\Gamma_1(270))\)
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 |
|---|---|---|---|---|
| 270.11.b | \(\chi_{270}(269, \cdot)\) | 270.11.b.a | 20 | 1 |
| 270.11.b.b | 20 | |||
| 270.11.b.c | 40 | |||
| 270.11.d | \(\chi_{270}(161, \cdot)\) | 270.11.d.a | 12 | 1 |
| 270.11.d.b | 16 | |||
| 270.11.d.c | 24 | |||
| 270.11.g | \(\chi_{270}(163, \cdot)\) | n/a | 160 | 2 |
| 270.11.h | \(\chi_{270}(71, \cdot)\) | 270.11.h.a | 80 | 2 |
| 270.11.j | \(\chi_{270}(89, \cdot)\) | n/a | 120 | 2 |
| 270.11.l | \(\chi_{270}(37, \cdot)\) | n/a | 240 | 4 |
| 270.11.n | \(\chi_{270}(29, \cdot)\) | n/a | 1080 | 6 |
| 270.11.o | \(\chi_{270}(11, \cdot)\) | n/a | 720 | 6 |
| 270.11.q | \(\chi_{270}(7, \cdot)\) | n/a | 2160 | 12 |
"n/a" means that newforms for that character have not been added to the database yet
Decomposition of \(S_{11}^{\mathrm{old}}(\Gamma_1(270))\) into lower level spaces
\( S_{11}^{\mathrm{old}}(\Gamma_1(270)) \cong \) \(S_{11}^{\mathrm{new}}(\Gamma_1(1))\)\(^{\oplus 16}\)\(\oplus\)\(S_{11}^{\mathrm{new}}(\Gamma_1(2))\)\(^{\oplus 8}\)\(\oplus\)\(S_{11}^{\mathrm{new}}(\Gamma_1(3))\)\(^{\oplus 12}\)\(\oplus\)\(S_{11}^{\mathrm{new}}(\Gamma_1(5))\)\(^{\oplus 8}\)\(\oplus\)\(S_{11}^{\mathrm{new}}(\Gamma_1(6))\)\(^{\oplus 6}\)\(\oplus\)\(S_{11}^{\mathrm{new}}(\Gamma_1(9))\)\(^{\oplus 8}\)\(\oplus\)\(S_{11}^{\mathrm{new}}(\Gamma_1(10))\)\(^{\oplus 4}\)\(\oplus\)\(S_{11}^{\mathrm{new}}(\Gamma_1(15))\)\(^{\oplus 6}\)\(\oplus\)\(S_{11}^{\mathrm{new}}(\Gamma_1(18))\)\(^{\oplus 4}\)\(\oplus\)\(S_{11}^{\mathrm{new}}(\Gamma_1(27))\)\(^{\oplus 4}\)\(\oplus\)\(S_{11}^{\mathrm{new}}(\Gamma_1(30))\)\(^{\oplus 3}\)\(\oplus\)\(S_{11}^{\mathrm{new}}(\Gamma_1(45))\)\(^{\oplus 4}\)\(\oplus\)\(S_{11}^{\mathrm{new}}(\Gamma_1(54))\)\(^{\oplus 2}\)\(\oplus\)\(S_{11}^{\mathrm{new}}(\Gamma_1(90))\)\(^{\oplus 2}\)\(\oplus\)\(S_{11}^{\mathrm{new}}(\Gamma_1(135))\)\(^{\oplus 2}\)