Properties

Label 2.2.305.1-9.1-p
Base field \(\Q(\sqrt{305}) \)
Weight $[2, 2]$
Level norm $9$
Level $[9, 3, 3]$
Dimension $28$
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: $[9, 3, 3]$
Dimension: $28$
CM: no
Base change: no
Newspace dimension: $220$

Hecke eigenvalues ($q$-expansion)

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

\(x^{28} + 43x^{26} + 817x^{24} + 9043x^{22} + 64744x^{20} + 314927x^{18} + 1064242x^{16} + 2511936x^{14} + 4104454x^{12} + 4529121x^{10} + 3217904x^{8} + 1347673x^{6} + 278533x^{4} + 18129x^{2} + 49\)

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

Atkin-Lehner eigenvalues

Norm Prime Eigenvalue
$9$ $[9, 3, 3]$ $-1$