Properties

Label 2.2.493.1-4.1-e
Base field \(\Q(\sqrt{493}) \)
Weight $[2, 2]$
Level norm $4$
Level $[4, 2, 2]$
Dimension $2$
CM no
Base change yes

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Base field \(\Q(\sqrt{493}) \)

Generator \(w\), with minimal polynomial \(x^{2} - x - 123\); 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: $118$

Hecke eigenvalues ($q$-expansion)

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

\(x^{2} - 8\)

  Show full eigenvalues   Hide large eigenvalues

Norm Prime Eigenvalue
3 $[3, 3, w]$ $\phantom{-}0$
3 $[3, 3, w + 2]$ $\phantom{-}0$
4 $[4, 2, 2]$ $-1$
11 $[11, 11, w + 1]$ $\phantom{-}e$
11 $[11, 11, w + 9]$ $\phantom{-}e$
13 $[13, 13, w - 11]$ $\phantom{-}2$
13 $[13, 13, w + 10]$ $\phantom{-}2$
17 $[17, 17, w + 8]$ $\phantom{-}2e$
25 $[25, 5, -5]$ $\phantom{-}8$
29 $[29, 29, w + 14]$ $-\frac{3}{2}e$
31 $[31, 31, w + 5]$ $-\frac{1}{2}e$
31 $[31, 31, w + 25]$ $-\frac{1}{2}e$
37 $[37, 37, w + 3]$ $\phantom{-}\frac{7}{2}e$
37 $[37, 37, w + 33]$ $\phantom{-}\frac{7}{2}e$
41 $[41, 41, w]$ $\phantom{-}4e$
41 $[41, 41, w + 40]$ $\phantom{-}4e$
49 $[49, 7, -7]$ $\phantom{-}12$
53 $[53, 53, -4w - 43]$ $-6$
53 $[53, 53, 4w - 47]$ $-6$
59 $[59, 59, -w - 13]$ $\phantom{-}4$
Display number of eigenvalues

Atkin-Lehner eigenvalues

Norm Prime Eigenvalue
$4$ $[4, 2, 2]$ $1$