Basic invariants
Dimension: | $2$ |
Group: | $D_{4}$ |
Conductor: | \(276\)\(\medspace = 2^{2} \cdot 3 \cdot 23 \) |
Frobenius-Schur indicator: | $1$ |
Root number: | $1$ |
Artin number field: | Galois closure of 4.2.3312.2 |
Galois orbit size: | $1$ |
Smallest permutation container: | $D_{4}$ |
Parity: | odd |
Projective image: | $C_2^2$ |
Projective field: | Galois closure of \(\Q(\sqrt{3}, \sqrt{-23})\) |
Galois action
Roots of defining polynomial
The roots of $f$ are computed in $\Q_{ 71 }$ to precision 5.
Roots:
$r_{ 1 }$ | $=$ |
\( 11 + 43\cdot 71 + 8\cdot 71^{2} + 31\cdot 71^{3} + 60\cdot 71^{4} +O(71^{5})\)
$r_{ 2 }$ |
$=$ |
\( 17 + 24\cdot 71 + 25\cdot 71^{2} + 54\cdot 71^{4} +O(71^{5})\)
| $r_{ 3 }$ |
$=$ |
\( 19 + 15\cdot 71 + 58\cdot 71^{2} + 58\cdot 71^{3} + 5\cdot 71^{4} +O(71^{5})\)
| $r_{ 4 }$ |
$=$ |
\( 24 + 59\cdot 71 + 49\cdot 71^{2} + 51\cdot 71^{3} + 21\cdot 71^{4} +O(71^{5})\)
| |
Generators of the action on the roots $r_1, \ldots, r_{ 4 }$
Cycle notation |
Character values on conjugacy classes
Size | Order | Action on $r_1, \ldots, r_{ 4 }$ | Character values |
$c1$ | |||
$1$ | $1$ | $()$ | $2$ |
$1$ | $2$ | $(1,2)(3,4)$ | $-2$ |
$2$ | $2$ | $(1,3)(2,4)$ | $0$ |
$2$ | $2$ | $(1,2)$ | $0$ |
$2$ | $4$ | $(1,4,2,3)$ | $0$ |