Properties

Label 2.2.305.1-2.1-a
Base field \(\Q(\sqrt{305}) \)
Weight $[2, 2]$
Level norm $2$
Level $[2, 2, w]$
Dimension $4$
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: $[2, 2, w]$
Dimension: $4$
CM: no
Base change: no
Newspace dimension: $16$

Hecke eigenvalues ($q$-expansion)

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

\(x^{4} - 3x^{3} + 4x - 1\)

  Show full eigenvalues   Hide large eigenvalues

Norm Prime Eigenvalue
2 $[2, 2, w]$ $-1$
2 $[2, 2, w + 1]$ $\phantom{-}e$
5 $[5, 5, -4w + 37]$ $\phantom{-}e^{2} - e - 1$
7 $[7, 7, w + 2]$ $\phantom{-}e^{3} - 2e^{2} - 2e + 4$
7 $[7, 7, w + 4]$ $-3e^{3} + 6e^{2} + 5e - 6$
9 $[9, 3, 3]$ $-e^{2} + 2e$
17 $[17, 17, w + 6]$ $\phantom{-}e^{3} - 4e^{2} + 8$
17 $[17, 17, w + 10]$ $\phantom{-}2e^{3} - 2e^{2} - 5e + 2$
19 $[19, 19, -2w + 19]$ $\phantom{-}e^{3} + e^{2} - 6e + 1$
19 $[19, 19, -2w - 17]$ $-4e^{3} + 7e^{2} + 5e - 6$
23 $[23, 23, w + 5]$ $\phantom{-}3e^{2} - 2e - 4$
23 $[23, 23, w + 17]$ $\phantom{-}2e^{2} - 4e - 1$
37 $[37, 37, w + 1]$ $-3e + 4$
37 $[37, 37, w + 35]$ $\phantom{-}4e^{3} - 6e^{2} - 7e + 5$
41 $[41, 41, -22w + 203]$ $\phantom{-}2e^{3} - 7e^{2} + 5e + 9$
41 $[41, 41, -6w + 55]$ $-4e^{3} + 9e^{2} + 2e - 8$
43 $[43, 43, w + 20]$ $-6e^{3} + 12e^{2} + 10e - 11$
43 $[43, 43, w + 22]$ $-2e^{3} + 5e^{2} + 5e - 4$
53 $[53, 53, w + 13]$ $-5e^{3} + 8e^{2} + 5e - 3$
53 $[53, 53, w + 39]$ $-2e^{3} + 7e + 7$
Display number of eigenvalues

Atkin-Lehner eigenvalues

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