Properties

Label 5.2e4_401e2.6t12.1
Dimension 5
Group $A_5$
Conductor $ 2^{4} \cdot 401^{2}$
Frobenius-Schur indicator 1

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Basic invariants

Dimension:$5$
Group:$A_5$
Conductor:$2572816= 2^{4} \cdot 401^{2} $
Artin number field: Splitting field of $f= x^{5} - x^{4} - 5 x^{3} + 17 x^{2} - 22 x + 12 $ over $\Q$
Size of Galois orbit: 1
Smallest containing permutation representation: $\PSL(2,5)$
Parity: Even

Galois action

Roots of defining polynomial

The roots of $f$ are computed in an extension of $\Q_{ 73 }$ to precision 5.
Minimal polynomial of a generator $a$ of $K$ over $\mathbb{Q}_{ 73 }$: $ x^{2} + 70 x + 5 $
Roots:
$r_{ 1 }$ $=$ $ 31 a + 62 + \left(70 a + 36\right)\cdot 73 + \left(36 a + 3\right)\cdot 73^{2} + \left(44 a + 65\right)\cdot 73^{3} + \left(22 a + 4\right)\cdot 73^{4} +O\left(73^{ 5 }\right)$
$r_{ 2 }$ $=$ $ 42 a + 9 + \left(2 a + 71\right)\cdot 73 + \left(36 a + 43\right)\cdot 73^{2} + \left(28 a + 15\right)\cdot 73^{3} + \left(50 a + 28\right)\cdot 73^{4} +O\left(73^{ 5 }\right)$
$r_{ 3 }$ $=$ $ 27 + 50\cdot 73 + 30\cdot 73^{2} + 3\cdot 73^{3} +O\left(73^{ 5 }\right)$
$r_{ 4 }$ $=$ $ 42 a + 71 + \left(27 a + 9\right)\cdot 73 + \left(37 a + 28\right)\cdot 73^{2} + \left(45 a + 54\right)\cdot 73^{3} + \left(48 a + 42\right)\cdot 73^{4} +O\left(73^{ 5 }\right)$
$r_{ 5 }$ $=$ $ 31 a + 51 + \left(45 a + 50\right)\cdot 73 + \left(35 a + 39\right)\cdot 73^{2} + \left(27 a + 7\right)\cdot 73^{3} + \left(24 a + 70\right)\cdot 73^{4} +O\left(73^{ 5 }\right)$

Generators of the action on the roots $r_1, \ldots, r_{ 5 }$

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

Character values on conjugacy classes

SizeOrderAction on $r_1, \ldots, r_{ 5 }$ Character values
$c1$
$1$ $1$ $()$ $5$
$15$ $2$ $(1,2)(3,4)$ $1$
$20$ $3$ $(1,2,3)$ $-1$
$12$ $5$ $(1,2,3,4,5)$ $0$
$12$ $5$ $(1,3,4,5,2)$ $0$
The blue line marks the conjugacy class containing complex conjugation.