Base field \(\Q(\sqrt{-5}) \)
Generator \(a\), with minimal polynomial \(x^2 + 5\); class number \(2\).
Level 108.3
| Norm: | 108 | 
| Ideal: | \((18) = \left(2, a + 1\right)^{2} \cdot \left(3, a + 1\right) \cdot \left(3, a + 2\right)^{2} \) | 
| Label: | 108.3 | 
Modular form spaces
| Weight | 2 | 
|---|---|
| Dimension of cuspidal subspace: | 2 | 
| Dimension of new cuspidal subspace: | 2 | 
Newforms
This space contains the following newforms of dimension 1.
| label | weight | sign | base change | CM | 
|---|---|---|---|---|
| 108.3-a | 2 | -1 | yes (twist) | no | 
| 108.3-b | 2 | +1 | yes (twist) | no |