Basic invariants
| Dimension: | $2$ |
| Group: | $\textrm{GL(2,3)}$ |
| Conductor: | \(981\)\(\medspace = 3^{2} \cdot 109 \) |
| Artin stem field: | Galois closure of 8.2.2832228423.2 |
| Galois orbit size: | $2$ |
| Smallest permutation container: | 24T22 |
| Parity: | odd |
| Determinant: | 1.327.2t1.a.a |
| Projective image: | $S_4$ |
| Projective stem field: | Galois closure of 4.2.2943.1 |
Defining polynomial
| $f(x)$ | $=$ |
\( x^{8} - 3x^{7} + 6x^{6} - 12x^{5} + 6x^{4} - 18x^{3} + 18x^{2} - 3x - 3 \)
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The roots of $f$ are computed in an extension of $\Q_{ 29 }$ to precision 7.
Minimal polynomial of a generator $a$ of $K$ over $\mathbb{Q}_{ 29 }$:
\( x^{2} + 24x + 2 \)
Roots:
| $r_{ 1 }$ | $=$ |
\( 5 a + 18 + \left(10 a + 8\right)\cdot 29 + \left(8 a + 18\right)\cdot 29^{2} + \left(22 a + 21\right)\cdot 29^{3} + \left(20 a + 3\right)\cdot 29^{4} + \left(2 a + 28\right)\cdot 29^{5} + \left(25 a + 27\right)\cdot 29^{6} +O(29^{7})\)
|
| $r_{ 2 }$ | $=$ |
\( 24 a + 14 + \left(18 a + 25\right)\cdot 29 + \left(20 a + 20\right)\cdot 29^{2} + \left(6 a + 8\right)\cdot 29^{3} + \left(8 a + 27\right)\cdot 29^{4} + \left(26 a + 20\right)\cdot 29^{5} + \left(3 a + 5\right)\cdot 29^{6} +O(29^{7})\)
|
| $r_{ 3 }$ | $=$ |
\( 16 a + 20 + \left(11 a + 18\right)\cdot 29 + \left(3 a + 17\right)\cdot 29^{2} + \left(7 a + 12\right)\cdot 29^{3} + \left(20 a + 24\right)\cdot 29^{4} + \left(20 a + 21\right)\cdot 29^{5} + 7\cdot 29^{6} +O(29^{7})\)
|
| $r_{ 4 }$ | $=$ |
\( 21 + 11\cdot 29 + 18\cdot 29^{2} + 19\cdot 29^{3} + 27\cdot 29^{4} + 19\cdot 29^{5} + 4\cdot 29^{6} +O(29^{7})\)
|
| $r_{ 5 }$ | $=$ |
\( 25 a + 2 + \left(26 a + 17\right)\cdot 29 + \left(3 a + 22\right)\cdot 29^{2} + \left(14 a + 14\right)\cdot 29^{3} + 12\cdot 29^{4} + \left(19 a + 3\right)\cdot 29^{5} + \left(21 a + 22\right)\cdot 29^{6} +O(29^{7})\)
|
| $r_{ 6 }$ | $=$ |
\( 20 + 21\cdot 29 + 8\cdot 29^{2} + 28\cdot 29^{3} + 16\cdot 29^{4} + 21\cdot 29^{5} + 3\cdot 29^{6} +O(29^{7})\)
|
| $r_{ 7 }$ | $=$ |
\( 4 a + 11 + \left(2 a + 10\right)\cdot 29 + \left(25 a + 15\right)\cdot 29^{2} + \left(14 a + 23\right)\cdot 29^{3} + 28 a\cdot 29^{4} + \left(9 a + 11\right)\cdot 29^{5} + \left(7 a + 24\right)\cdot 29^{6} +O(29^{7})\)
|
| $r_{ 8 }$ | $=$ |
\( 13 a + 13 + \left(17 a + 2\right)\cdot 29 + \left(25 a + 23\right)\cdot 29^{2} + \left(21 a + 15\right)\cdot 29^{3} + \left(8 a + 2\right)\cdot 29^{4} + \left(8 a + 18\right)\cdot 29^{5} + \left(28 a + 19\right)\cdot 29^{6} +O(29^{7})\)
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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 |
| $1$ | $1$ | $()$ | $2$ |
| $1$ | $2$ | $(1,8)(2,3)(4,6)(5,7)$ | $-2$ |
| $12$ | $2$ | $(1,7)(4,6)(5,8)$ | $0$ |
| $8$ | $3$ | $(1,6,2)(3,8,4)$ | $-1$ |
| $6$ | $4$ | $(1,7,8,5)(2,4,3,6)$ | $0$ |
| $8$ | $6$ | $(1,3,6,8,2,4)(5,7)$ | $1$ |
| $6$ | $8$ | $(1,2,5,6,8,3,7,4)$ | $\zeta_{8}^{3} + \zeta_{8}$ |
| $6$ | $8$ | $(1,3,5,4,8,2,7,6)$ | $-\zeta_{8}^{3} - \zeta_{8}$ |
The blue line marks the conjugacy class containing complex conjugation.