Properties

Label 8.985223153873.9t15.a.a
Dimension $8$
Group $C_3^2:C_8$
Conductor $985223153873$
Root number $1$
Indicator $1$

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Basic invariants

Dimension: $8$
Group: $C_3^2:C_8$
Conductor: \(985223153873\)\(\medspace = 7^{4} \cdot 17^{7} \)
Frobenius-Schur indicator: $1$
Root number: $1$
Artin stem field: Galois closure of 9.1.985223153873.1
Galois orbit size: $1$
Smallest permutation container: $C_3^2:C_8$
Parity: even
Determinant: 1.17.2t1.a.a
Projective image: $F_9$
Projective stem field: Galois closure of 9.1.985223153873.1

Defining polynomial

$f(x)$$=$ \( x^{9} - 4x^{8} + 17x^{6} - 17x^{5} - 17x^{4} + 34x^{3} - 17x + 17 \) Copy content Toggle raw display .

The roots of $f$ are computed in an extension of $\Q_{ 19 }$ to precision 10.

Minimal polynomial of a generator $a$ of $K$ over $\mathbb{Q}_{ 19 }$: \( x^{4} + 2x^{2} + 11x + 2 \) Copy content Toggle raw display

Roots:
$r_{ 1 }$ $=$ \( 13 a^{3} + 18 a^{2} + 2 a + 9 + \left(8 a^{3} + 3 a^{2} + 7 a + 7\right)\cdot 19 + \left(14 a^{3} + 9 a^{2} + 9 a + 17\right)\cdot 19^{2} + \left(2 a^{3} + 6 a^{2} + 4 a + 13\right)\cdot 19^{3} + \left(4 a^{3} + 3 a^{2} + a + 2\right)\cdot 19^{4} + \left(2 a^{3} + 4 a^{2} + 11 a + 8\right)\cdot 19^{5} + \left(18 a^{3} + 17 a^{2} + 10 a + 11\right)\cdot 19^{6} + \left(18 a^{3} + 3 a^{2} + a + 17\right)\cdot 19^{7} + \left(5 a^{3} + 13 a^{2} + 14 a + 7\right)\cdot 19^{8} + \left(16 a^{3} + 14 a^{2} + 15 a + 13\right)\cdot 19^{9} +O(19^{10})\) Copy content Toggle raw display
$r_{ 2 }$ $=$ \( a^{3} + 4 a^{2} + 3 a + 18 + \left(5 a^{3} + 9 a^{2} + 15 a + 2\right)\cdot 19 + \left(16 a^{3} + 17 a + 1\right)\cdot 19^{2} + \left(11 a^{3} + 5 a^{2} + 11 a + 18\right)\cdot 19^{3} + \left(4 a^{3} + 2 a^{2} + 16 a + 11\right)\cdot 19^{4} + \left(14 a^{3} + 15 a^{2} + 3 a + 3\right)\cdot 19^{5} + \left(13 a + 12\right)\cdot 19^{6} + \left(11 a^{3} + a^{2} + 14 a + 14\right)\cdot 19^{7} + \left(12 a^{2} + 13 a + 11\right)\cdot 19^{8} + \left(3 a^{3} + 6 a^{2} + 13 a + 4\right)\cdot 19^{9} +O(19^{10})\) Copy content Toggle raw display
$r_{ 3 }$ $=$ \( 9 + 8\cdot 19 + 9\cdot 19^{2} + 19^{3} + 6\cdot 19^{4} + 3\cdot 19^{5} + 11\cdot 19^{6} + 6\cdot 19^{7} + 11\cdot 19^{8} + 5\cdot 19^{9} +O(19^{10})\) Copy content Toggle raw display
$r_{ 4 }$ $=$ \( 3 a^{3} + 7 a^{2} + 9 + \left(9 a^{3} + 11 a^{2} + 10\right)\cdot 19 + \left(15 a^{3} + 16 a^{2} + 18 a + 15\right)\cdot 19^{2} + \left(13 a^{3} + 5 a^{2} + 5 a + 1\right)\cdot 19^{3} + \left(12 a^{3} + 7 a^{2} + 10 a + 3\right)\cdot 19^{4} + \left(17 a^{3} + 13 a^{2} + 4 a + 11\right)\cdot 19^{5} + \left(13 a^{3} + 13 a^{2} + 17 a + 5\right)\cdot 19^{6} + \left(8 a^{3} + 2 a^{2} + a + 16\right)\cdot 19^{7} + \left(3 a^{3} + a^{2} + 12 a\right)\cdot 19^{8} + \left(3 a^{3} + 9 a^{2} + 4 a + 13\right)\cdot 19^{9} +O(19^{10})\) Copy content Toggle raw display
$r_{ 5 }$ $=$ \( 16 a^{3} + 3 a^{2} + 13 a + 14 + \left(3 a^{3} + 8 a^{2} + 8 a + 9\right)\cdot 19 + \left(16 a^{3} + 4 a^{2} + 11 a + 17\right)\cdot 19^{2} + \left(11 a^{3} + 7 a^{2} + 9 a + 8\right)\cdot 19^{3} + \left(8 a^{3} + 5 a^{2} + 9 a + 8\right)\cdot 19^{4} + \left(6 a^{3} + 15 a^{2} + 14 a + 11\right)\cdot 19^{5} + \left(4 a^{3} + 16 a^{2} + 15 a + 6\right)\cdot 19^{6} + \left(12 a^{3} + 7 a + 11\right)\cdot 19^{7} + \left(18 a^{3} + 16 a^{2} + a + 10\right)\cdot 19^{8} + \left(2 a^{3} + a^{2} + 9 a + 4\right)\cdot 19^{9} +O(19^{10})\) Copy content Toggle raw display
$r_{ 6 }$ $=$ \( 18 a^{3} + 3 a^{2} + 6 a + 2 + \left(6 a^{3} + 15 a^{2} + 9\right)\cdot 19 + \left(6 a^{3} + 10 a^{2} + a + 4\right)\cdot 19^{2} + \left(11 a^{3} + 12 a^{2} + 5 a + 5\right)\cdot 19^{3} + \left(10 a^{3} + 12 a^{2} + 13 a + 8\right)\cdot 19^{4} + \left(6 a^{3} + 18 a^{2} + 9 a + 1\right)\cdot 19^{5} + \left(13 a^{3} + 10 a^{2} + 11 a + 18\right)\cdot 19^{6} + \left(7 a^{3} + 6 a^{2} + 8 a + 12\right)\cdot 19^{7} + \left(14 a^{3} + 6 a^{2} + 15 a + 8\right)\cdot 19^{8} + \left(16 a^{3} + 8 a^{2} + 15 a + 15\right)\cdot 19^{9} +O(19^{10})\) Copy content Toggle raw display
$r_{ 7 }$ $=$ \( 2 a^{3} + 13 a^{2} + 17 a + 2 + \left(9 a^{3} + 4 a^{2} + 6 a + 8\right)\cdot 19 + \left(10 a^{3} + 4 a^{2} + 12 a + 9\right)\cdot 19^{2} + \left(9 a^{3} + 14 a^{2} + 16 a + 3\right)\cdot 19^{3} + \left(4 a^{3} + 18 a^{2} + 17 a + 13\right)\cdot 19^{4} + \left(10 a^{3} + 7 a^{2} + a + 15\right)\cdot 19^{5} + \left(2 a^{3} + 4 a^{2} + 18 a + 6\right)\cdot 19^{6} + \left(5 a^{3} + 13 a^{2} + 18 a + 11\right)\cdot 19^{7} + \left(7 a^{3} + 3 a^{2} + 8 a + 1\right)\cdot 19^{8} + \left(4 a^{3} + 10 a^{2} + 16 a + 5\right)\cdot 19^{9} +O(19^{10})\) Copy content Toggle raw display
$r_{ 8 }$ $=$ \( 10 a^{3} + 14 a^{2} + 17 a + 4 + \left(18 a^{3} + 10 a^{2} + 2 a + 5\right)\cdot 19 + \left(13 a^{2} + 16 a + 10\right)\cdot 19^{2} + \left(12 a^{3} + 11 a^{2} + 18 a + 5\right)\cdot 19^{3} + \left(14 a^{3} + 16 a^{2} + 13 a + 12\right)\cdot 19^{4} + \left(3 a^{3} + 18 a^{2} + 2 a + 16\right)\cdot 19^{5} + \left(2 a^{3} + 11 a^{2} + 7\right)\cdot 19^{6} + \left(18 a^{3} + 7 a^{2} + a + 14\right)\cdot 19^{7} + \left(17 a^{3} + 2 a^{2} + 7 a\right)\cdot 19^{8} + \left(a^{3} + 13 a^{2} + 16 a + 12\right)\cdot 19^{9} +O(19^{10})\) Copy content Toggle raw display
$r_{ 9 }$ $=$ \( 13 a^{3} + 14 a^{2} + 18 a + 13 + \left(14 a^{3} + 12 a^{2} + 15 a + 14\right)\cdot 19 + \left(14 a^{3} + 16 a^{2} + 8 a + 9\right)\cdot 19^{2} + \left(2 a^{3} + 12 a^{2} + 3 a + 17\right)\cdot 19^{3} + \left(16 a^{3} + 9 a^{2} + 12 a + 9\right)\cdot 19^{4} + \left(14 a^{3} + a^{2} + 8 a + 4\right)\cdot 19^{5} + \left(a^{3} + 8 a + 15\right)\cdot 19^{6} + \left(13 a^{3} + 2 a^{2} + 2 a + 8\right)\cdot 19^{7} + \left(7 a^{3} + 2 a^{2} + 3 a + 3\right)\cdot 19^{8} + \left(8 a^{3} + 12 a^{2} + 3 a + 2\right)\cdot 19^{9} +O(19^{10})\) Copy content Toggle raw display

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

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

Character values on conjugacy classes

SizeOrderAction on $r_1, \ldots, r_{ 9 }$ Character value
$1$$1$$()$$8$
$9$$2$$(2,4)(3,5)(6,7)(8,9)$$0$
$8$$3$$(1,8,9)(2,6,5)(3,7,4)$$-1$
$9$$4$$(2,5,4,3)(6,8,7,9)$$0$
$9$$4$$(2,3,4,5)(6,9,7,8)$$0$
$9$$8$$(2,8,5,7,4,9,3,6)$$0$
$9$$8$$(2,7,3,8,4,6,5,9)$$0$
$9$$8$$(2,9,5,6,4,8,3,7)$$0$
$9$$8$$(2,6,3,9,4,7,5,8)$$0$

The blue line marks the conjugacy class containing complex conjugation.