Properties

Label 6.315631.7t7.1c1
Dimension 6
Group $S_7$
Conductor $ 315631 $
Root number 1
Frobenius-Schur indicator 1

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Basic invariants

Dimension:$6$
Group:$S_7$
Conductor:$315631 $
Artin number field: Splitting field of $f= x^{7} - x^{5} - 2 x^{4} + x^{2} + x + 1 $ over $\Q$
Size of Galois orbit: 1
Smallest containing permutation representation: $S_7$
Parity: Odd
Determinant: 1.315631.2t1.1c1

Galois action

Roots of defining polynomial

The roots of $f$ are computed in an extension of $\Q_{ 163 }$ to precision 5.
Minimal polynomial of a generator $a$ of $K$ over $\mathbb{Q}_{ 163 }$: $ x^{2} + 159 x + 2 $
Roots:
$r_{ 1 }$ $=$ $ 46 + 120\cdot 163 + 63\cdot 163^{2} + 62\cdot 163^{3} + 5\cdot 163^{4} +O\left(163^{ 5 }\right)$
$r_{ 2 }$ $=$ $ 100 a + 25 + \left(71 a + 81\right)\cdot 163 + \left(39 a + 131\right)\cdot 163^{2} + \left(2 a + 129\right)\cdot 163^{3} + \left(66 a + 60\right)\cdot 163^{4} +O\left(163^{ 5 }\right)$
$r_{ 3 }$ $=$ $ 38 a + 23 + \left(162 a + 69\right)\cdot 163 + \left(76 a + 150\right)\cdot 163^{2} + \left(49 a + 65\right)\cdot 163^{3} + \left(132 a + 143\right)\cdot 163^{4} +O\left(163^{ 5 }\right)$
$r_{ 4 }$ $=$ $ 109 + 86\cdot 163 + 9\cdot 163^{2} + 100\cdot 163^{3} + 126\cdot 163^{4} +O\left(163^{ 5 }\right)$
$r_{ 5 }$ $=$ $ 12 + 162\cdot 163 + 108\cdot 163^{2} + 7\cdot 163^{3} + 22\cdot 163^{4} +O\left(163^{ 5 }\right)$
$r_{ 6 }$ $=$ $ 125 a + 12 + 28\cdot 163 + \left(86 a + 133\right)\cdot 163^{2} + \left(113 a + 23\right)\cdot 163^{3} + \left(30 a + 134\right)\cdot 163^{4} +O\left(163^{ 5 }\right)$
$r_{ 7 }$ $=$ $ 63 a + 99 + \left(91 a + 104\right)\cdot 163 + \left(123 a + 54\right)\cdot 163^{2} + \left(160 a + 99\right)\cdot 163^{3} + \left(96 a + 159\right)\cdot 163^{4} +O\left(163^{ 5 }\right)$

Generators of the action on the roots $r_1, \ldots, r_{ 7 }$

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

Character values on conjugacy classes

SizeOrderAction on $r_1, \ldots, r_{ 7 }$ Character value
$1$$1$$()$$6$
$21$$2$$(1,2)$$4$
$105$$2$$(1,2)(3,4)(5,6)$$0$
$105$$2$$(1,2)(3,4)$$2$
$70$$3$$(1,2,3)$$3$
$280$$3$$(1,2,3)(4,5,6)$$0$
$210$$4$$(1,2,3,4)$$2$
$630$$4$$(1,2,3,4)(5,6)$$0$
$504$$5$$(1,2,3,4,5)$$1$
$210$$6$$(1,2,3)(4,5)(6,7)$$-1$
$420$$6$$(1,2,3)(4,5)$$1$
$840$$6$$(1,2,3,4,5,6)$$0$
$720$$7$$(1,2,3,4,5,6,7)$$-1$
$504$$10$$(1,2,3,4,5)(6,7)$$-1$
$420$$12$$(1,2,3,4)(5,6,7)$$-1$
The blue line marks the conjugacy class containing complex conjugation.