Properties

Label 2.2.85.1-15.2-f
Base field \(\Q(\sqrt{85}) \)
Weight $[2, 2]$
Level norm $15$
Level $[15,15,-w + 3]$
Dimension $5$
CM no
Base change no

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Base field \(\Q(\sqrt{85}) \)

Generator \(w\), with minimal polynomial \(x^{2} - x - 21\); narrow class number \(2\) and class number \(2\).

Form

Weight: $[2, 2]$
Level: $[15,15,-w + 3]$
Dimension: $5$
CM: no
Base change: no
Newspace dimension: $30$

Hecke eigenvalues ($q$-expansion)

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

\(x^{5} + 2x^{4} - 9x^{3} - 14x^{2} + 16x + 8\)

  Show full eigenvalues   Hide large eigenvalues

Norm Prime Eigenvalue
3 $[3, 3, w]$ $-1$
3 $[3, 3, w + 2]$ $\phantom{-}e$
4 $[4, 2, 2]$ $\phantom{-}\frac{1}{2}e^{3} + \frac{1}{2}e^{2} - 3e - 1$
5 $[5, 5, w + 2]$ $-1$
7 $[7, 7, w]$ $-\frac{1}{2}e^{4} - \frac{1}{2}e^{3} + 4e^{2} + 2e - 4$
7 $[7, 7, w + 6]$ $-\frac{1}{2}e^{3} - \frac{1}{2}e^{2} + 4e + 2$
17 $[17, 17, w + 8]$ $-\frac{1}{2}e^{4} + \frac{7}{2}e^{2}$
19 $[19, 19, w + 1]$ $\phantom{-}\frac{1}{2}e^{4} + \frac{1}{2}e^{3} - 3e^{2} - 2e$
19 $[19, 19, w - 2]$ $-\frac{1}{2}e^{4} + e^{3} + \frac{7}{2}e^{2} - 7e + 2$
23 $[23, 23, w + 9]$ $-e^{4} + 8e^{2} - 4$
23 $[23, 23, w + 13]$ $-\frac{1}{2}e^{3} + \frac{1}{2}e^{2} + 2e - 2$
37 $[37, 37, w + 11]$ $\phantom{-}\frac{1}{2}e^{4} - e^{3} - \frac{11}{2}e^{2} + 6e + 8$
37 $[37, 37, w + 25]$ $-e^{3} + 7e - 2$
59 $[59, 59, 3w + 10]$ $-\frac{1}{2}e^{4} - \frac{1}{2}e^{3} + 5e^{2} + 6e - 8$
59 $[59, 59, 3w - 13]$ $\phantom{-}\frac{3}{2}e^{4} + \frac{1}{2}e^{3} - 13e^{2} - 2e + 16$
73 $[73, 73, w + 15]$ $\phantom{-}\frac{1}{2}e^{4} - \frac{3}{2}e^{3} - 5e^{2} + 12e + 10$
73 $[73, 73, w + 57]$ $\phantom{-}e^{3} + 4e^{2} - 4e - 18$
89 $[89, 89, -w - 10]$ $-\frac{1}{2}e^{4} + \frac{9}{2}e^{2} + 3e - 4$
89 $[89, 89, w - 11]$ $-\frac{1}{2}e^{4} + \frac{3}{2}e^{3} + 4e^{2} - 10e - 6$
97 $[97, 97, w + 22]$ $-\frac{1}{2}e^{4} + \frac{1}{2}e^{3} + 2e^{2} - 7e + 2$
Display number of eigenvalues

Atkin-Lehner eigenvalues

Norm Prime Eigenvalue
$3$ $[3,3,-w + 3]$ $1$
$5$ $[5,5,-w + 3]$ $1$