Base field \(\Q(\sqrt{-15}) \)
Generator \(a\), with minimal polynomial \(x^{2} - x + 4\); class number \(2\).
Level 81.1
Norm: | 81 |
Ideal: | \((9) = \left(3, a + 1\right)^{4} \) |
Label: | 81.1 |
Modular form spaces
Weight | 2 |
---|---|
Dimension of cuspidal subspace: | 1 |
Dimension of new cuspidal subspace: | 1 |
Newforms
This space contains the following newform of dimension 1.
label | weight | sign | base change | CM |
---|---|---|---|---|
81.1-a | 2 | -1 | yes | $-3$ |