Properties

Label 4.2e6_3e4_7e3.10t12.2
Dimension 4
Group $\PGL(2,5)$
Conductor $ 2^{6} \cdot 3^{4} \cdot 7^{3}$
Frobenius-Schur indicator 1

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Basic invariants

Dimension:$4$
Group:$\PGL(2,5)$
Conductor:$1778112= 2^{6} \cdot 3^{4} \cdot 7^{3} $
Artin number field: Splitting field of $f= x^{6} + 3 x^{4} - 2 x^{3} + 6 x^{2} + 1 $ over $\Q$
Size of Galois orbit: 1
Smallest containing permutation representation: $S_5$
Parity: Odd

Galois action

Roots of defining polynomial

The roots of $f$ are computed in an extension of $\Q_{ 23 }$ to precision 5.
Minimal polynomial of a generator $a$ of $K$ over $\mathbb{Q}_{ 23 }$: $ x^{2} + 21 x + 5 $
Roots:
$r_{ 1 }$ $=$ $ 20 + 17\cdot 23 + 21\cdot 23^{2} + 4\cdot 23^{3} + 14\cdot 23^{4} +O\left(23^{ 5 }\right)$
$r_{ 2 }$ $=$ $ 16 + 17\cdot 23 + 13\cdot 23^{2} + 15\cdot 23^{3} + 12\cdot 23^{4} +O\left(23^{ 5 }\right)$
$r_{ 3 }$ $=$ $ 20 a + 12 + \left(16 a + 8\right)\cdot 23 + \left(6 a + 3\right)\cdot 23^{2} + \left(a + 15\right)\cdot 23^{3} + \left(22 a + 2\right)\cdot 23^{4} +O\left(23^{ 5 }\right)$
$r_{ 4 }$ $=$ $ 12 a + 7 + \left(9 a + 9\right)\cdot 23 + \left(11 a + 8\right)\cdot 23^{2} + \left(3 a + 13\right)\cdot 23^{3} + \left(20 a + 1\right)\cdot 23^{4} +O\left(23^{ 5 }\right)$
$r_{ 5 }$ $=$ $ 3 a + 6 + \left(6 a + 22\right)\cdot 23 + \left(16 a + 22\right)\cdot 23^{2} + \left(21 a + 10\right)\cdot 23^{3} + 22\cdot 23^{4} +O\left(23^{ 5 }\right)$
$r_{ 6 }$ $=$ $ 11 a + 8 + \left(13 a + 16\right)\cdot 23 + \left(11 a + 21\right)\cdot 23^{2} + \left(19 a + 8\right)\cdot 23^{3} + \left(2 a + 15\right)\cdot 23^{4} +O\left(23^{ 5 }\right)$

Generators of the action on the roots $r_1, \ldots, r_{ 6 }$

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

Character values on conjugacy classes

SizeOrderAction on $r_1, \ldots, r_{ 6 }$ Character values
$c1$
$1$ $1$ $()$ $4$
$10$ $2$ $(1,2)(3,6)(4,5)$ $-2$
$15$ $2$ $(1,2)(3,5)$ $0$
$20$ $3$ $(1,3,6)(2,5,4)$ $1$
$30$ $4$ $(1,5,2,3)$ $0$
$24$ $5$ $(2,4,3,5,6)$ $-1$
$20$ $6$ $(1,2,3,5,6,4)$ $1$
The blue line marks the conjugacy class containing complex conjugation.