Properties

Label 3.2e4_821e2.6t8.1
Dimension 3
Group $S_4$
Conductor $ 2^{4} \cdot 821^{2}$
Frobenius-Schur indicator 1

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Basic invariants

Dimension:$3$
Group:$S_4$
Conductor:$10784656= 2^{4} \cdot 821^{2} $
Artin number field: Splitting field of $f= x^{4} - x^{3} - x^{2} - 2 $ over $\Q$
Size of Galois orbit: 1
Smallest containing permutation representation: $S_4$
Parity: Even

Galois action

Roots of defining polynomial

The roots of $f$ are computed in $\Q_{ 167 }$ to precision 5.
Roots:
$r_{ 1 }$ $=$ $ 37 + 132\cdot 167 + 103\cdot 167^{2} + 157\cdot 167^{3} + 17\cdot 167^{4} +O\left(167^{ 5 }\right)$
$r_{ 2 }$ $=$ $ 44 + 158\cdot 167 + 155\cdot 167^{2} + 56\cdot 167^{3} + 43\cdot 167^{4} +O\left(167^{ 5 }\right)$
$r_{ 3 }$ $=$ $ 111 + 133\cdot 167 + 74\cdot 167^{2} + 127\cdot 167^{3} + 147\cdot 167^{4} +O\left(167^{ 5 }\right)$
$r_{ 4 }$ $=$ $ 143 + 76\cdot 167 + 166\cdot 167^{2} + 158\cdot 167^{3} + 124\cdot 167^{4} +O\left(167^{ 5 }\right)$

Generators of the action on the roots $r_1, \ldots, r_{ 4 }$

Cycle notation
$(1,2,3,4)$
$(1,2)$

Character values on conjugacy classes

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