Properties

Label 2.2.40.1-5.1-a
Base field \(\Q(\sqrt{10}) \)
Weight $[2, 2]$
Level norm $5$
Level $[5, 5, w]$
Dimension $4$
CM no
Base change yes

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Base field \(\Q(\sqrt{10}) \)

Generator \(w\), with minimal polynomial \(x^{2} - 10\); narrow class number \(2\) and class number \(2\).

Form

Weight: $[2, 2]$
Level: $[5, 5, w]$
Dimension: $4$
CM: no
Base change: yes
Newspace dimension: $4$

Hecke eigenvalues ($q$-expansion)

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

\(x^{4} + 8x^{2} + 4\)

  Show full eigenvalues   Hide large eigenvalues

Norm Prime Eigenvalue
2 $[2, 2, w]$ $\phantom{-}e$
3 $[3, 3, w + 1]$ $-\frac{1}{2}e^{3} - 4e$
3 $[3, 3, w + 2]$ $-\frac{1}{2}e^{3} - 4e$
5 $[5, 5, w]$ $\phantom{-}\frac{1}{4}e^{3} + \frac{3}{2}e$
13 $[13, 13, w + 6]$ $\phantom{-}\frac{1}{2}e^{3} + 5e$
13 $[13, 13, w + 7]$ $\phantom{-}\frac{1}{2}e^{3} + 5e$
31 $[31, 31, -2w + 3]$ $-e^{2} - 6$
31 $[31, 31, 2w + 3]$ $-e^{2} - 6$
37 $[37, 37, w + 11]$ $\phantom{-}\frac{1}{2}e^{3} + 3e$
37 $[37, 37, w + 26]$ $\phantom{-}\frac{1}{2}e^{3} + 3e$
41 $[41, 41, 3w + 7]$ $\phantom{-}e^{2} + 2$
41 $[41, 41, -3w + 7]$ $\phantom{-}e^{2} + 2$
43 $[43, 43, w + 15]$ $\phantom{-}\frac{3}{2}e^{3} + 8e$
43 $[43, 43, w + 28]$ $\phantom{-}\frac{3}{2}e^{3} + 8e$
49 $[49, 7, -7]$ $-e^{2} - 14$
53 $[53, 53, w + 13]$ $-\frac{5}{2}e^{3} - 17e$
53 $[53, 53, w + 40]$ $-\frac{5}{2}e^{3} - 17e$
67 $[67, 67, w + 12]$ $-\frac{5}{2}e^{3} - 16e$
67 $[67, 67, w + 55]$ $-\frac{5}{2}e^{3} - 16e$
71 $[71, 71, -w - 9]$ $\phantom{-}e^{2} + 6$
Display number of eigenvalues

Atkin-Lehner eigenvalues

Norm Prime Eigenvalue
$5$ $[5, 5, w]$ $-\frac{1}{4}e^{3} - \frac{3}{2}e$