Basic invariants
| Dimension: | $2$ |
| Group: | $\textrm{GL(2,3)}$ |
| Conductor: | \(1557\)\(\medspace = 3^{2} \cdot 173 \) |
| Artin number field: | Galois closure of 8.2.11323667079.3 |
| Galois orbit size: | $2$ |
| Smallest permutation container: | 24T22 |
| Parity: | odd |
| Projective image: | $S_4$ |
| Projective field: | Galois closure of 4.2.4671.1 |
Galois action
Roots of defining polynomial
The roots of $f$ are computed in an extension of $\Q_{ 23 }$ to precision 8.
Minimal polynomial of a generator $a$ of $K$ over $\mathbb{Q}_{ 23 }$:
\( x^{2} + 21x + 5 \)
![Copy content]()
![Toggle raw display]()
Roots:
| $r_{ 1 }$ | $=$ |
\( 1 + 15\cdot 23 + 3\cdot 23^{2} + 23^{3} + 23^{4} + 10\cdot 23^{5} + 3\cdot 23^{6} + 3\cdot 23^{7} +O(23^{8})\)
|
| $r_{ 2 }$ | $=$ |
\( 12 a + 15 + \left(2 a + 1\right)\cdot 23 + 14 a\cdot 23^{2} + \left(18 a + 11\right)\cdot 23^{3} + \left(2 a + 5\right)\cdot 23^{4} + \left(12 a + 19\right)\cdot 23^{5} + \left(20 a + 1\right)\cdot 23^{6} + \left(2 a + 17\right)\cdot 23^{7} +O(23^{8})\)
|
| $r_{ 3 }$ | $=$ |
\( 7 a + 1 + \left(15 a + 7\right)\cdot 23 + \left(14 a + 4\right)\cdot 23^{2} + 9 a\cdot 23^{4} + \left(2 a + 21\right)\cdot 23^{5} + \left(21 a + 2\right)\cdot 23^{6} + \left(3 a + 22\right)\cdot 23^{7} +O(23^{8})\)
|
| $r_{ 4 }$ | $=$ |
\( 16 a + 15 + \left(7 a + 7\right)\cdot 23 + \left(8 a + 18\right)\cdot 23^{2} + \left(22 a + 9\right)\cdot 23^{3} + \left(13 a + 17\right)\cdot 23^{4} + \left(20 a + 16\right)\cdot 23^{5} + \left(a + 19\right)\cdot 23^{6} + \left(19 a + 8\right)\cdot 23^{7} +O(23^{8})\)
|
| $r_{ 5 }$ | $=$ |
\( 18 + 8\cdot 23 + 14\cdot 23^{2} + 7\cdot 23^{3} + 19\cdot 23^{4} + 6\cdot 23^{5} + 16\cdot 23^{6} + 11\cdot 23^{7} +O(23^{8})\)
|
| $r_{ 6 }$ | $=$ |
\( 20 a + 16 + \left(3 a + 11\right)\cdot 23 + 14\cdot 23^{2} + \left(3 a + 22\right)\cdot 23^{3} + \left(14 a + 3\right)\cdot 23^{4} + \left(22 a + 19\right)\cdot 23^{5} + \left(17 a + 1\right)\cdot 23^{6} + \left(5 a + 5\right)\cdot 23^{7} +O(23^{8})\)
|
| $r_{ 7 }$ | $=$ |
\( 3 a + 10 + \left(19 a + 22\right)\cdot 23 + \left(22 a + 10\right)\cdot 23^{2} + \left(19 a + 5\right)\cdot 23^{3} + \left(8 a + 6\right)\cdot 23^{4} + 4\cdot 23^{5} + \left(5 a + 15\right)\cdot 23^{6} + \left(17 a + 21\right)\cdot 23^{7} +O(23^{8})\)
|
| $r_{ 8 }$ | $=$ |
\( 11 a + 16 + \left(20 a + 17\right)\cdot 23 + \left(8 a + 2\right)\cdot 23^{2} + \left(4 a + 11\right)\cdot 23^{3} + \left(20 a + 15\right)\cdot 23^{4} + \left(10 a + 17\right)\cdot 23^{5} + \left(2 a + 7\right)\cdot 23^{6} + \left(20 a + 2\right)\cdot 23^{7} +O(23^{8})\)
|
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 values | |
| $c1$ | $c2$ | |||
| $1$ | $1$ | $()$ | $2$ | $2$ |
| $1$ | $2$ | $(1,5)(2,8)(3,6)(4,7)$ | $-2$ | $-2$ |
| $12$ | $2$ | $(1,5)(2,3)(6,8)$ | $0$ | $0$ |
| $8$ | $3$ | $(1,8,3)(2,6,5)$ | $-1$ | $-1$ |
| $6$ | $4$ | $(1,2,5,8)(3,4,6,7)$ | $0$ | $0$ |
| $8$ | $6$ | $(1,2,3,5,8,6)(4,7)$ | $1$ | $1$ |
| $6$ | $8$ | $(1,3,4,8,5,6,7,2)$ | $-\zeta_{8}^{3} - \zeta_{8}$ | $\zeta_{8}^{3} + \zeta_{8}$ |
| $6$ | $8$ | $(1,6,4,2,5,3,7,8)$ | $\zeta_{8}^{3} + \zeta_{8}$ | $-\zeta_{8}^{3} - \zeta_{8}$ |