Properties

Label 21.1104217e10.84.1c1
Dimension 21
Group $S_7$
Conductor $ 1104217^{10}$
Root number 1
Frobenius-Schur indicator 1

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Basic invariants

Dimension:$21$
Group:$S_7$
Conductor:$2694910152214540443776125731068766636863833027137753619574449= 1104217^{10} $
Artin number field: Splitting field of $f= x^{7} - 3 x^{6} + 6 x^{5} - 7 x^{4} + 4 x^{3} - 3 x + 1 $ over $\Q$
Size of Galois orbit: 1
Smallest containing permutation representation: 84
Parity: Even
Determinant: 1.1.1t1.1c1

Galois action

Roots of defining polynomial

The roots of $f$ are computed in an extension of $\Q_{ 137 }$ to precision 5.
Minimal polynomial of a generator $a$ of $K$ over $\mathbb{Q}_{ 137 }$: $ x^{2} + 131 x + 3 $
Roots:
$r_{ 1 }$ $=$ $ 84 + 122\cdot 137 + 131\cdot 137^{2} + 74\cdot 137^{3} + 72\cdot 137^{4} +O\left(137^{ 5 }\right)$
$r_{ 2 }$ $=$ $ 31 + 84\cdot 137 + 4\cdot 137^{2} + 117\cdot 137^{3} + 21\cdot 137^{4} +O\left(137^{ 5 }\right)$
$r_{ 3 }$ $=$ $ 119 + 38\cdot 137 + 93\cdot 137^{2} + 31\cdot 137^{3} + 4\cdot 137^{4} +O\left(137^{ 5 }\right)$
$r_{ 4 }$ $=$ $ 49 + 97\cdot 137 + 114\cdot 137^{2} + 26\cdot 137^{3} + 58\cdot 137^{4} +O\left(137^{ 5 }\right)$
$r_{ 5 }$ $=$ $ 90 + 23\cdot 137 + 80\cdot 137^{2} + 60\cdot 137^{3} + 73\cdot 137^{4} +O\left(137^{ 5 }\right)$
$r_{ 6 }$ $=$ $ 48 a + 82 + \left(107 a + 66\right)\cdot 137 + \left(117 a + 104\right)\cdot 137^{2} + \left(29 a + 87\right)\cdot 137^{3} + \left(17 a + 53\right)\cdot 137^{4} +O\left(137^{ 5 }\right)$
$r_{ 7 }$ $=$ $ 89 a + 96 + \left(29 a + 114\right)\cdot 137 + \left(19 a + 18\right)\cdot 137^{2} + \left(107 a + 12\right)\cdot 137^{3} + \left(119 a + 127\right)\cdot 137^{4} +O\left(137^{ 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$$1$$()$$21$
$21$$2$$(1,2)$$1$
$105$$2$$(1,2)(3,4)(5,6)$$-3$
$105$$2$$(1,2)(3,4)$$1$
$70$$3$$(1,2,3)$$-3$
$280$$3$$(1,2,3)(4,5,6)$$0$
$210$$4$$(1,2,3,4)$$-1$
$630$$4$$(1,2,3,4)(5,6)$$-1$
$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)$$0$
$504$$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.