Base field \(\Q(\sqrt{15}) \)
Generator \(w\), with minimal polynomial \(x^2 - 15\); narrow class number \(4\) and class number \(2\).
Form
| Weight: | $[2, 2]$ |
| Level: | $[40, 20, 2 w - 10]$ |
| Dimension: | $1$ |
| CM: | no |
| Base change: | yes |
| Newspace dimension: | $24$ |
Hecke eigenvalues ($q$-expansion)
The Hecke eigenvalue field is $\Q$.
| Norm | Prime | Eigenvalue |
|---|---|---|
| 2 | $[2, 2, w + 1]$ | $\phantom{-}0$ |
| 3 | $[3, 3, w]$ | $\phantom{-}0$ |
| 5 | $[5, 5, w]$ | $\phantom{-}1$ |
| 7 | $[7, 7, w + 1]$ | $-4$ |
| 7 | $[7, 7, w + 6]$ | $-4$ |
| 11 | $[11, 11, -w - 2]$ | $\phantom{-}4$ |
| 11 | $[11, 11, w - 2]$ | $\phantom{-}4$ |
| 17 | $[17, 17, w + 7]$ | $\phantom{-}2$ |
| 17 | $[17, 17, w + 10]$ | $\phantom{-}2$ |
| 43 | $[43, 43, w + 12]$ | $-8$ |
| 43 | $[43, 43, w + 31]$ | $-8$ |
| 53 | $[53, 53, w + 11]$ | $\phantom{-}6$ |
| 53 | $[53, 53, w + 42]$ | $\phantom{-}6$ |
| 59 | $[59, 59, 2 w - 1]$ | $-4$ |
| 59 | $[59, 59, -2 w - 1]$ | $-4$ |
| 61 | $[61, 61, 2 w - 11]$ | $-2$ |
| 61 | $[61, 61, -2 w - 11]$ | $-2$ |
| 67 | $[67, 67, w + 22]$ | $\phantom{-}8$ |
| 67 | $[67, 67, w + 45]$ | $\phantom{-}8$ |
| 71 | $[71, 71, 3 w - 8]$ | $\phantom{-}0$ |
Atkin-Lehner eigenvalues
| Norm | Prime | Eigenvalue |
|---|---|---|
| $2$ | $[2, 2, w + 1]$ | $-1$ |
| $5$ | $[5, 5, w]$ | $-1$ |