Properties

Label 2.3e4_7e2.6t5.8
Dimension 2
Group $S_3\times C_3$
Conductor $ 3^{4} \cdot 7^{2}$
Frobenius-Schur indicator 0

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Basic invariants

Dimension:$2$
Group:$S_3\times C_3$
Conductor:$3969= 3^{4} \cdot 7^{2} $
Artin number field: Splitting field of $f= x^{9} + 6 x^{7} - 8 x^{6} - 9 x^{5} - 60 x^{4} - 15 x^{3} - 18 x^{2} + 108 x + 8 $ over $\Q$
Size of Galois orbit: 2
Smallest containing permutation representation: $S_3\times C_3$
Parity: Odd

Galois action

Roots of defining polynomial

The roots of $f$ are computed in an extension of $\Q_{ 11 }$ to precision 8.
Minimal polynomial of a generator $a$ of $K$ over $\mathbb{Q}_{ 11 }$: $ x^{3} + 2 x + 9 $
Roots:
$r_{ 1 }$ $=$ $ 4 a^{2} + 3 a + 7 + \left(5 a^{2} + 2 a + 3\right)\cdot 11 + \left(4 a^{2} + a + 4\right)\cdot 11^{2} + \left(5 a^{2} + a + 3\right)\cdot 11^{3} + \left(8 a^{2} + 2 a + 4\right)\cdot 11^{4} + \left(3 a^{2} + 5\right)\cdot 11^{5} + \left(9 a^{2} + 9 a\right)\cdot 11^{6} + \left(7 a^{2} + 3 a + 5\right)\cdot 11^{7} +O\left(11^{ 8 }\right)$
$r_{ 2 }$ $=$ $ 5 a^{2} + 10 a + 6 + \left(10 a^{2} + 9 a + 2\right)\cdot 11 + 9 a^{2}11^{2} + \left(7 a^{2} + 8 a + 9\right)\cdot 11^{3} + \left(a^{2} + 2 a + 8\right)\cdot 11^{4} + \left(3 a^{2} + 6 a + 2\right)\cdot 11^{5} + \left(a + 9\right)\cdot 11^{6} + \left(a^{2} + a + 4\right)\cdot 11^{7} +O\left(11^{ 8 }\right)$
$r_{ 3 }$ $=$ $ a^{2} + 6 a + 3 + \left(9 a^{2} + 6 a + 1\right)\cdot 11 + \left(10 a + 3\right)\cdot 11^{2} + \left(8 a^{2} + 3 a + 3\right)\cdot 11^{3} + \left(a^{2} + 5 a + 6\right)\cdot 11^{4} + \left(5 a^{2} + 3 a + 3\right)\cdot 11^{5} + \left(8 a^{2} + 4 a + 10\right)\cdot 11^{6} + \left(6 a^{2} + 4 a + 10\right)\cdot 11^{7} +O\left(11^{ 8 }\right)$
$r_{ 4 }$ $=$ $ 5 a^{2} + 3 a + 2 + \left(a + 8\right)\cdot 11 + \left(2 a^{2} + 8 a + 2\right)\cdot 11^{2} + \left(3 a + 9\right)\cdot 11^{3} + \left(3 a^{2} + 5 a\right)\cdot 11^{4} + \left(4 a^{2} + 7 a + 3\right)\cdot 11^{5} + \left(4 a^{2} + 2 a + 5\right)\cdot 11^{6} + \left(4 a^{2} + 8 a\right)\cdot 11^{7} +O\left(11^{ 8 }\right)$
$r_{ 5 }$ $=$ $ 4 a^{2} + 10 a + 8 + \left(4 a^{2} + 10 a + 9\right)\cdot 11 + \left(a^{2} + 4 a + 1\right)\cdot 11^{2} + \left(2 a^{2} + 5 a + 8\right)\cdot 11^{3} + \left(7 a^{2} + 10 a + 2\right)\cdot 11^{4} + \left(2 a^{2} + 9 a + 8\right)\cdot 11^{5} + \left(5 a^{2} + 7 a + 2\right)\cdot 11^{6} + \left(4 a^{2} + 7 a + 4\right)\cdot 11^{7} +O\left(11^{ 8 }\right)$
$r_{ 6 }$ $=$ $ 6 a^{2} + 6 a + \left(8 a^{2} + 4 a\right)\cdot 11 + \left(8 a^{2} + 6 a + 6\right)\cdot 11^{2} + \left(a + 10\right)\cdot 11^{3} + \left(2 a^{2} + 6 a + 1\right)\cdot 11^{4} + \left(3 a^{2} + 8 a + 10\right)\cdot 11^{5} + \left(8 a^{2} + 9 a + 8\right)\cdot 11^{6} + \left(10 a^{2} + 9 a + 6\right)\cdot 11^{7} +O\left(11^{ 8 }\right)$
$r_{ 7 }$ $=$ $ 6 a^{2} + 2 a + 6 + \left(7 a^{2} + 2 a + 6\right)\cdot 11 + \left(5 a^{2} + 10 a + 9\right)\cdot 11^{2} + \left(8 a^{2} + 5 a + 3\right)\cdot 11^{3} + \left(3 a + 1\right)\cdot 11^{4} + \left(2 a^{2} + 7 a + 3\right)\cdot 11^{5} + \left(4 a^{2} + 8 a + 8\right)\cdot 11^{6} + \left(7 a^{2} + 2 a\right)\cdot 11^{7} +O\left(11^{ 8 }\right)$
$r_{ 8 }$ $=$ $ 6 a + 3 + \left(3 a^{2} + 7 a + 7\right)\cdot 11 + \left(3 a^{2} + 3 a + 9\right)\cdot 11^{2} + \left(2 a^{2} + a + 8\right)\cdot 11^{3} + \left(7 a^{2} + 2 a + 8\right)\cdot 11^{4} + \left(4 a^{2} + 7 a + 4\right)\cdot 11^{5} + \left(2 a^{2} + 10 a + 8\right)\cdot 11^{6} + \left(10 a^{2} + 10 a + 9\right)\cdot 11^{7} +O\left(11^{ 8 }\right)$
$r_{ 9 }$ $=$ $ 2 a^{2} + 9 a + 9 + \left(6 a^{2} + 9 a + 4\right)\cdot 11 + \left(7 a^{2} + 8 a + 6\right)\cdot 11^{2} + \left(8 a^{2} + a + 9\right)\cdot 11^{3} + \left(6 a + 8\right)\cdot 11^{4} + \left(4 a^{2} + 4 a + 2\right)\cdot 11^{5} + \left(a^{2} + 1\right)\cdot 11^{6} + \left(2 a^{2} + 6 a + 1\right)\cdot 11^{7} +O\left(11^{ 8 }\right)$

Generators of the action on the roots $r_1, \ldots, r_{ 9 }$

Cycle notation
$(1,8,6,9,4,3)(2,7,5)$
$(2,9)(3,5)(7,8)$
$(1,9)(3,6)(4,8)$

Character values on conjugacy classes

SizeOrderAction on $r_1, \ldots, r_{ 9 }$ Character values
$c1$ $c2$
$1$ $1$ $()$ $2$ $2$
$3$ $2$ $(1,9)(3,6)(4,8)$ $0$ $0$
$1$ $3$ $(1,6,4)(2,5,7)(3,8,9)$ $2 \zeta_{3}$ $-2 \zeta_{3} - 2$
$1$ $3$ $(1,4,6)(2,7,5)(3,9,8)$ $-2 \zeta_{3} - 2$ $2 \zeta_{3}$
$2$ $3$ $(1,7,3)(2,8,6)(4,5,9)$ $\zeta_{3} + 1$ $-\zeta_{3}$
$2$ $3$ $(1,3,7)(2,6,8)(4,9,5)$ $-\zeta_{3}$ $\zeta_{3} + 1$
$2$ $3$ $(1,2,9)(3,6,5)(4,7,8)$ $-1$ $-1$
$3$ $6$ $(1,8,6,9,4,3)(2,7,5)$ $0$ $0$
$3$ $6$ $(1,3,4,9,6,8)(2,5,7)$ $0$ $0$
The blue line marks the conjugacy class containing complex conjugation.