Properties

Label 2.2.481.1-4.1-d
Base field \(\Q(\sqrt{481}) \)
Weight $[2, 2]$
Level norm $4$
Level $[4, 2, 2]$
Dimension $2$
CM no
Base change yes

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Base field \(\Q(\sqrt{481}) \)

Generator \(w\), with minimal polynomial \(x^{2} - x - 120\); narrow class number \(2\) and class number \(2\).

Form

Weight: $[2, 2]$
Level: $[4, 2, 2]$
Dimension: $2$
CM: no
Base change: yes
Newspace dimension: $80$

Hecke eigenvalues ($q$-expansion)

The Hecke eigenvalue field is $\Q(e)$ where $e$ is a root of the defining polynomial:

\(x^{2} + 9\)

  Show full eigenvalues   Hide large eigenvalues

Norm Prime Eigenvalue
2 $[2, 2, w]$ $-\frac{1}{3}e$
2 $[2, 2, w + 1]$ $-\frac{1}{3}e$
3 $[3, 3, -2w - 21]$ $-1$
3 $[3, 3, 2w - 23]$ $-1$
5 $[5, 5, w]$ $\phantom{-}e$
5 $[5, 5, w + 4]$ $\phantom{-}e$
13 $[13, 13, w + 6]$ $-2e$
19 $[19, 19, w + 2]$ $\phantom{-}2e$
19 $[19, 19, w + 16]$ $\phantom{-}2e$
31 $[31, 31, w + 13]$ $\phantom{-}0$
31 $[31, 31, w + 17]$ $\phantom{-}0$
37 $[37, 37, w + 18]$ $-e$
49 $[49, 7, -7]$ $\phantom{-}5$
53 $[53, 53, -234w + 2683]$ $-6$
53 $[53, 53, -234w - 2449]$ $-6$
59 $[59, 59, w + 1]$ $\phantom{-}2e$
59 $[59, 59, w + 57]$ $\phantom{-}2e$
89 $[89, 89, w + 41]$ $\phantom{-}2e$
89 $[89, 89, w + 47]$ $\phantom{-}2e$
97 $[97, 97, w + 26]$ $\phantom{-}4e$
Display number of eigenvalues

Atkin-Lehner eigenvalues

Norm Prime Eigenvalue
$2$ $[2, 2, w]$ $\frac{1}{3}e$
$2$ $[2, 2, w + 1]$ $\frac{1}{3}e$