Properties

Label 2.2.220.1-9.2-m
Base field \(\Q(\sqrt{55}) \)
Weight $[2, 2]$
Level norm $9$
Level $[9, 9, -w + 8]$
Dimension $8$
CM no
Base change no

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Base field \(\Q(\sqrt{55}) \)

Generator \(w\), with minimal polynomial \(x^{2} - 55\); narrow class number \(4\) and class number \(2\).

Form

Weight: $[2, 2]$
Level: $[9, 9, -w + 8]$
Dimension: $8$
CM: no
Base change: no
Newspace dimension: $68$

Hecke eigenvalues ($q$-expansion)

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

\(x^{8} + 44x^{6} + 504x^{4} + 1584x^{2} + 1296\)

  Show full eigenvalues   Hide large eigenvalues

Norm Prime Eigenvalue
2 $[2, 2, w + 1]$ $-\frac{1}{432}e^{7} - \frac{11}{108}e^{5} - \frac{7}{6}e^{3} - \frac{19}{6}e$
3 $[3, 3, w + 1]$ $\phantom{-}0$
3 $[3, 3, w + 2]$ $\phantom{-}\frac{1}{432}e^{7} + \frac{11}{108}e^{5} + \frac{7}{6}e^{3} + \frac{25}{6}e$
5 $[5, 5, -2w + 15]$ $-\frac{1}{144}e^{6} - \frac{11}{36}e^{4} - \frac{13}{4}e^{2} - 6$
11 $[11, 11, 3w - 22]$ $\phantom{-}\frac{1}{48}e^{6} + \frac{5}{6}e^{4} + \frac{91}{12}e^{2} + 12$
13 $[13, 13, w + 4]$ $\phantom{-}\frac{1}{288}e^{7} + \frac{19}{144}e^{5} + \frac{23}{24}e^{3} - \frac{1}{4}e$
13 $[13, 13, w + 9]$ $\phantom{-}\frac{1}{144}e^{7} + \frac{11}{36}e^{5} + \frac{7}{2}e^{3} + \frac{19}{2}e$
17 $[17, 17, w + 2]$ $-\frac{1}{108}e^{7} - \frac{79}{216}e^{5} - \frac{37}{12}e^{3} - \frac{8}{3}e$
17 $[17, 17, w + 15]$ $\phantom{-}\frac{19}{864}e^{7} + \frac{391}{432}e^{5} + \frac{209}{24}e^{3} + \frac{181}{12}e$
19 $[19, 19, -w - 6]$ $\phantom{-}\frac{1}{144}e^{6} + \frac{19}{72}e^{4} + \frac{23}{12}e^{2} + \frac{1}{2}$
19 $[19, 19, w - 6]$ $\phantom{-}\frac{1}{144}e^{6} + \frac{19}{72}e^{4} + \frac{23}{12}e^{2} + \frac{1}{2}$
23 $[23, 23, w + 3]$ $-\frac{11}{864}e^{7} - \frac{233}{432}e^{5} - \frac{43}{8}e^{3} - \frac{83}{12}e$
23 $[23, 23, w + 20]$ $\phantom{-}\frac{1}{216}e^{7} + \frac{11}{54}e^{5} + \frac{7}{3}e^{3} + \frac{25}{3}e$
47 $[47, 47, w + 14]$ $\phantom{-}\frac{7}{216}e^{7} + \frac{299}{216}e^{5} + \frac{57}{4}e^{3} + \frac{79}{3}e$
47 $[47, 47, w + 33]$ $-\frac{17}{864}e^{7} - \frac{365}{432}e^{5} - \frac{71}{8}e^{3} - \frac{233}{12}e$
49 $[49, 7, -7]$ $\phantom{-}\frac{1}{144}e^{6} + \frac{11}{36}e^{4} + \frac{13}{4}e^{2} + 2$
67 $[67, 67, w + 16]$ $\phantom{-}\frac{1}{96}e^{7} + \frac{7}{16}e^{5} + \frac{101}{24}e^{3} + \frac{11}{4}e$
67 $[67, 67, w + 51]$ $\phantom{-}\frac{1}{96}e^{7} + \frac{7}{16}e^{5} + \frac{101}{24}e^{3} + \frac{11}{4}e$
73 $[73, 73, w + 36]$ $-\frac{7}{288}e^{7} - \frac{145}{144}e^{5} - \frac{79}{8}e^{3} - \frac{73}{4}e$
73 $[73, 73, w + 37]$ $-\frac{1}{72}e^{7} - \frac{19}{36}e^{5} - \frac{23}{6}e^{3} + e$
Display number of eigenvalues

Atkin-Lehner eigenvalues

Norm Prime Eigenvalue
$3$ $[3, 3, w + 1]$ $-1$