Base field \(\Q(\sqrt{21}) \)
Generator \(w\), with minimal polynomial \(x^{2} - x - 5\); narrow class number \(2\) and class number \(1\).
Form
Weight: | $[2, 2]$ |
Level: | $[64, 8, 8]$ |
Dimension: | $4$ |
CM: | no |
Base change: | yes |
Newspace dimension: | $8$ |
Hecke eigenvalues ($q$-expansion)
The Hecke eigenvalue field is $\Q(e)$ where $e$ is a root of the defining polynomial:
\(x^{4} - 14x^{2} + 32\) |
Show full eigenvalues Hide large eigenvalues
Norm | Prime | Eigenvalue |
---|---|---|
3 | $[3, 3, w + 1]$ | $\phantom{-}e$ |
4 | $[4, 2, 2]$ | $\phantom{-}0$ |
5 | $[5, 5, w]$ | $-\frac{1}{4}e^{3} + \frac{5}{2}e$ |
5 | $[5, 5, w - 1]$ | $-\frac{1}{4}e^{3} + \frac{5}{2}e$ |
7 | $[7, 7, -w - 3]$ | $\phantom{-}e^{2} - 8$ |
17 | $[17, 17, -2w + 3]$ | $-\frac{1}{4}e^{3} + \frac{3}{2}e$ |
17 | $[17, 17, -2w - 1]$ | $-\frac{1}{4}e^{3} + \frac{3}{2}e$ |
37 | $[37, 37, w + 6]$ | $-2$ |
37 | $[37, 37, -w + 7]$ | $-2$ |
41 | $[41, 41, 3w + 1]$ | $\phantom{-}\frac{3}{4}e^{3} - \frac{17}{2}e$ |
41 | $[41, 41, -3w + 4]$ | $\phantom{-}\frac{3}{4}e^{3} - \frac{17}{2}e$ |
43 | $[43, 43, 3w + 8]$ | $-4$ |
43 | $[43, 43, 3w - 11]$ | $-4$ |
47 | $[47, 47, 3w - 2]$ | $-e^{3} + 8e$ |
47 | $[47, 47, 3w - 1]$ | $-e^{3} + 8e$ |
59 | $[59, 59, -5w - 6]$ | $\phantom{-}3e$ |
59 | $[59, 59, -4w - 3]$ | $\phantom{-}3e$ |
67 | $[67, 67, -w - 8]$ | $\phantom{-}2e^{2} - 12$ |
67 | $[67, 67, w - 9]$ | $\phantom{-}2e^{2} - 12$ |
79 | $[79, 79, 2w - 11]$ | $\phantom{-}e^{2}$ |
Atkin-Lehner eigenvalues
Norm | Prime | Eigenvalue |
---|---|---|
$4$ | $[4, 2, 2]$ | $1$ |