Properties

Label 3.7e2_113e2.4t4.1
Dimension 3
Group $A_4$
Conductor $ 7^{2} \cdot 113^{2}$
Frobenius-Schur indicator 1

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Basic invariants

Dimension:$3$
Group:$A_4$
Conductor:$625681= 7^{2} \cdot 113^{2} $
Artin number field: Splitting field of $f= x^{4} - x^{3} - 2 x^{2} - 13 x + 56 $ over $\Q$
Size of Galois orbit: 1
Smallest containing permutation representation: $A_4$
Parity: Even

Galois action

Roots of defining polynomial

The roots of $f$ are computed in $\Q_{ 29 }$ to precision 5.
Roots:
$r_{ 1 }$ $=$ $ 6 + 25\cdot 29 + 22\cdot 29^{2} + 19\cdot 29^{3} + 4\cdot 29^{4} +O\left(29^{ 5 }\right)$
$r_{ 2 }$ $=$ $ 15 + 9\cdot 29 + 21\cdot 29^{2} + 10\cdot 29^{3} + 29^{4} +O\left(29^{ 5 }\right)$
$r_{ 3 }$ $=$ $ 17 + 17\cdot 29 + 9\cdot 29^{2} + 4\cdot 29^{3} + 13\cdot 29^{4} +O\left(29^{ 5 }\right)$
$r_{ 4 }$ $=$ $ 21 + 5\cdot 29 + 4\cdot 29^{2} + 23\cdot 29^{3} + 9\cdot 29^{4} +O\left(29^{ 5 }\right)$

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

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

Character values on conjugacy classes

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