Properties

Label 3.2e6_7e2_19e2.4t4.3
Dimension 3
Group $A_4$
Conductor $ 2^{6} \cdot 7^{2} \cdot 19^{2}$
Frobenius-Schur indicator 1

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Basic invariants

Dimension:$3$
Group:$A_4$
Conductor:$1132096= 2^{6} \cdot 7^{2} \cdot 19^{2} $
Artin number field: Splitting field of $f= x^{4} - 2 x^{3} + 6 x^{2} + 2 x + 15 $ 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 $\Q_{ 11 }$ to precision 5.
Roots:
$r_{ 1 }$ $=$ $ 1 + 9\cdot 11 + 10\cdot 11^{2} + 2\cdot 11^{3} + 10\cdot 11^{4} +O\left(11^{ 5 }\right)$
$r_{ 2 }$ $=$ $ 5 + 11 + 6\cdot 11^{2} + 9\cdot 11^{3} + 8\cdot 11^{4} +O\left(11^{ 5 }\right)$
$r_{ 3 }$ $=$ $ 8 + 11 + 4\cdot 11^{2} + 5\cdot 11^{3} + 8\cdot 11^{4} +O\left(11^{ 5 }\right)$
$r_{ 4 }$ $=$ $ 10 + 9\cdot 11 + 4\cdot 11^{3} + 5\cdot 11^{4} +O\left(11^{ 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.