Properties

Label 2.2.305.1-8.2-a
Base field \(\Q(\sqrt{305}) \)
Weight $[2, 2]$
Level norm $8$
Level $[8,4,-2w + 2]$
Dimension $1$
CM no
Base change no

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Base field \(\Q(\sqrt{305}) \)

Generator \(w\), with minimal polynomial \(x^{2} - x - 76\); narrow class number \(4\) and class number \(2\).

Form

Weight: $[2, 2]$
Level: $[8,4,-2w + 2]$
Dimension: $1$
CM: no
Base change: no
Newspace dimension: $32$

Hecke eigenvalues ($q$-expansion)

The Hecke eigenvalue field is $\Q$.
Norm Prime Eigenvalue
2 $[2, 2, w]$ $\phantom{-}1$
2 $[2, 2, w + 1]$ $\phantom{-}0$
5 $[5, 5, -4w + 37]$ $\phantom{-}3$
7 $[7, 7, w + 2]$ $-5$
7 $[7, 7, w + 4]$ $\phantom{-}1$
9 $[9, 3, 3]$ $-2$
17 $[17, 17, w + 6]$ $\phantom{-}6$
17 $[17, 17, w + 10]$ $\phantom{-}0$
19 $[19, 19, -2w + 19]$ $\phantom{-}2$
19 $[19, 19, -2w - 17]$ $-4$
23 $[23, 23, w + 5]$ $\phantom{-}3$
23 $[23, 23, w + 17]$ $-3$
37 $[37, 37, w + 1]$ $\phantom{-}10$
37 $[37, 37, w + 35]$ $\phantom{-}4$
41 $[41, 41, -22w + 203]$ $-3$
41 $[41, 41, -6w + 55]$ $-3$
43 $[43, 43, w + 20]$ $\phantom{-}4$
43 $[43, 43, w + 22]$ $\phantom{-}4$
53 $[53, 53, w + 13]$ $-12$
53 $[53, 53, w + 39]$ $\phantom{-}12$
Display number of eigenvalues

Atkin-Lehner eigenvalues

Norm Prime Eigenvalue
$2$ $[2,2,-w + 1]$ $-1$
$2$ $[2,2,-w + 2]$ $-1$