Base field \(\Q(\sqrt{-7}) \)
Generator \(a\), with minimal polynomial \(x^{2} - x + 2\); class number \(1\).
Level 256.4
| Norm: | 256 |
| Ideal: | \((8 a - 16) = \left(a\right)^{5} \cdot \left(-a + 1\right)^{3} \) |
| Label: | 256.4 |
Modular form spaces
| Weight | 2 |
|---|---|
| Dimension of cuspidal subspace: | 3 |
| Dimension of new cuspidal subspace: | 1 |
Newforms
This space contains the following newform of dimension 1.
| label | weight | sign | base change | CM |
|---|---|---|---|---|
| 256.4-a | 2 | +1 | no | no |