# Properties

 Base field $$\Q(\sqrt{85})$$ Weight [2, 2] Level norm 4 Level $[4, 2, 2]$ Label 2.2.85.1-4.1-c Dimension 2 CM no Base change yes

# Related objects

• L-function not available

## 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 $[4, 2, 2]$ Label 2.2.85.1-4.1-c Dimension 2 Is CM no Is base change yes Parent newspace dimension 10

## Hecke eigenvalues ($q$-expansion)

The Hecke eigenvalue field is $\Q(e)$ where $e$ is a root of the defining polynomial:
$$x^{2}$$ $$\mathstrut -\mathstrut 8$$
Norm Prime Eigenvalue
3 $[3, 3, w]$ $\phantom{-}e$
3 $[3, 3, w + 2]$ $\phantom{-}e$
4 $[4, 2, 2]$ $-1$
5 $[5, 5, w + 2]$ $\phantom{-}\frac{1}{2}e$
7 $[7, 7, w]$ $-\frac{3}{2}e$
7 $[7, 7, w + 6]$ $-\frac{3}{2}e$
17 $[17, 17, w + 8]$ $\phantom{-}2e$
19 $[19, 19, w + 1]$ $\phantom{-}2$
19 $[19, 19, w - 2]$ $\phantom{-}2$
23 $[23, 23, w + 9]$ $-\frac{1}{2}e$
23 $[23, 23, w + 13]$ $-\frac{1}{2}e$
37 $[37, 37, w + 11]$ $-\frac{3}{2}e$
37 $[37, 37, w + 25]$ $-\frac{3}{2}e$
59 $[59, 59, 3w + 10]$ $-12$
59 $[59, 59, 3w - 13]$ $-12$
73 $[73, 73, w + 15]$ $-3e$
73 $[73, 73, w + 57]$ $-3e$
89 $[89, 89, -w - 10]$ $\phantom{-}12$
89 $[89, 89, w - 11]$ $\phantom{-}12$
97 $[97, 97, w + 22]$ $\phantom{-}0$
 Display number of eigenvalues

## Atkin-Lehner eigenvalues

Norm Prime Eigenvalue
4 $[4, 2, 2]$ $1$