Basic invariants
Dimension: | $2$ |
Group: | $\textrm{GL(2,3)}$ |
Conductor: | \(563\) |
Artin stem field: | Galois closure of 8.2.178453547.2 |
Galois orbit size: | $2$ |
Smallest permutation container: | 24T22 |
Parity: | odd |
Determinant: | 1.563.2t1.a.a |
Projective image: | $S_4$ |
Projective stem field: | Galois closure of 4.2.563.1 |
Defining polynomial
$f(x)$ | $=$ | \( x^{8} - 2x^{7} + 3x^{6} + x^{5} - 4x^{4} + 12x^{3} - 7x^{2} + 2x - 9 \) . |
The roots of $f$ are computed in an extension of $\Q_{ 29 }$ to precision 6.
Minimal polynomial of a generator $a$ of $K$ over $\mathbb{Q}_{ 29 }$: \( x^{2} + 24x + 2 \)
Roots:
$r_{ 1 }$ | $=$ |
\( 18 a + 6 + \left(22 a + 4\right)\cdot 29 + \left(10 a + 28\right)\cdot 29^{2} + \left(13 a + 13\right)\cdot 29^{4} + \left(2 a + 20\right)\cdot 29^{5} +O(29^{6})\)
$r_{ 2 }$ |
$=$ |
\( 3 a + 26 + \left(3 a + 3\right)\cdot 29 + \left(5 a + 16\right)\cdot 29^{2} + \left(18 a + 11\right)\cdot 29^{3} + \left(10 a + 28\right)\cdot 29^{4} + 9\cdot 29^{5} +O(29^{6})\)
| $r_{ 3 }$ |
$=$ |
\( 28 + 21\cdot 29 + 14\cdot 29^{2} + 21\cdot 29^{3} + 29^{4} + 8\cdot 29^{5} +O(29^{6})\)
| $r_{ 4 }$ |
$=$ |
\( 26 a + 12 + \left(25 a + 16\right)\cdot 29 + \left(23 a + 9\right)\cdot 29^{2} + \left(10 a + 10\right)\cdot 29^{3} + \left(18 a + 5\right)\cdot 29^{4} + \left(28 a + 1\right)\cdot 29^{5} +O(29^{6})\)
| $r_{ 5 }$ |
$=$ |
\( 9 a + 15 + \left(9 a + 7\right)\cdot 29 + \left(2 a + 26\right)\cdot 29^{2} + \left(4 a + 24\right)\cdot 29^{3} + \left(19 a + 22\right)\cdot 29^{4} + \left(27 a + 12\right)\cdot 29^{5} +O(29^{6})\)
| $r_{ 6 }$ |
$=$ |
\( 20 a + 2 + \left(19 a + 16\right)\cdot 29 + \left(26 a + 28\right)\cdot 29^{2} + \left(24 a + 13\right)\cdot 29^{3} + \left(9 a + 27\right)\cdot 29^{4} + \left(a + 15\right)\cdot 29^{5} +O(29^{6})\)
| $r_{ 7 }$ |
$=$ |
\( 20 + 4\cdot 29 + 20\cdot 29^{2} + 11\cdot 29^{3} + 26\cdot 29^{4} + 27\cdot 29^{5} +O(29^{6})\)
| $r_{ 8 }$ |
$=$ |
\( 11 a + 9 + \left(6 a + 12\right)\cdot 29 + \left(18 a + 1\right)\cdot 29^{2} + \left(28 a + 21\right)\cdot 29^{3} + \left(15 a + 19\right)\cdot 29^{4} + \left(26 a + 19\right)\cdot 29^{5} +O(29^{6})\)
| |
Generators of the action on the roots $r_1, \ldots, r_{ 8 }$
Cycle notation |
Character values on conjugacy classes
Size | Order | Action on $r_1, \ldots, r_{ 8 }$ | Character value |
$1$ | $1$ | $()$ | $2$ |
$1$ | $2$ | $(1,4)(2,8)(3,7)(5,6)$ | $-2$ |
$12$ | $2$ | $(2,6)(3,7)(5,8)$ | $0$ |
$8$ | $3$ | $(1,3,8)(2,4,7)$ | $-1$ |
$6$ | $4$ | $(1,2,4,8)(3,6,7,5)$ | $0$ |
$8$ | $6$ | $(1,2,3,4,8,7)(5,6)$ | $1$ |
$6$ | $8$ | $(1,2,7,6,4,8,3,5)$ | $-\zeta_{8}^{3} - \zeta_{8}$ |
$6$ | $8$ | $(1,8,7,5,4,2,3,6)$ | $\zeta_{8}^{3} + \zeta_{8}$ |
The blue line marks the conjugacy class containing complex conjugation.