Properties

Label 2.30976.8t5.a
Dimension $2$
Group $Q_8$
Conductor $30976$
Indicator $-1$

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Basic invariants

Dimension:$2$
Group:$Q_8$
Conductor:\(30976\)\(\medspace = 2^{8} \cdot 11^{2} \)
Frobenius-Schur indicator: $-1$
Root number: $1$
Artin number field: Galois closure of 8.8.29721861554176.1
Galois orbit size: $1$
Smallest permutation container: $Q_8$
Parity: even
Projective image: $C_2^2$
Projective field: Galois closure of \(\Q(\sqrt{2}, \sqrt{11})\)

Galois action

Roots of defining polynomial

The roots of $f$ are computed in $\Q_{ 79 }$ to precision 10.
Roots:
$r_{ 1 }$ $=$ \( 2 + 32\cdot 79 + 64\cdot 79^{2} + 77\cdot 79^{3} + 43\cdot 79^{4} + 47\cdot 79^{6} + 15\cdot 79^{7} + 32\cdot 79^{8} + 40\cdot 79^{9} +O(79^{10})\) Copy content Toggle raw display
$r_{ 2 }$ $=$ \( 14 + 46\cdot 79 + 52\cdot 79^{2} + 44\cdot 79^{3} + 53\cdot 79^{4} + 15\cdot 79^{5} + 20\cdot 79^{6} + 65\cdot 79^{7} + 62\cdot 79^{8} + 51\cdot 79^{9} +O(79^{10})\) Copy content Toggle raw display
$r_{ 3 }$ $=$ \( 16 + 54\cdot 79 + 64\cdot 79^{2} + 18\cdot 79^{3} + 27\cdot 79^{4} + 18\cdot 79^{5} + 43\cdot 79^{6} + 29\cdot 79^{7} + 61\cdot 79^{8} + 64\cdot 79^{9} +O(79^{10})\) Copy content Toggle raw display
$r_{ 4 }$ $=$ \( 33 + 61\cdot 79 + 76\cdot 79^{2} + 61\cdot 79^{3} + 45\cdot 79^{4} + 75\cdot 79^{5} + 37\cdot 79^{6} + 66\cdot 79^{7} + 45\cdot 79^{8} + 58\cdot 79^{9} +O(79^{10})\) Copy content Toggle raw display
$r_{ 5 }$ $=$ \( 46 + 17\cdot 79 + 2\cdot 79^{2} + 17\cdot 79^{3} + 33\cdot 79^{4} + 3\cdot 79^{5} + 41\cdot 79^{6} + 12\cdot 79^{7} + 33\cdot 79^{8} + 20\cdot 79^{9} +O(79^{10})\) Copy content Toggle raw display
$r_{ 6 }$ $=$ \( 63 + 24\cdot 79 + 14\cdot 79^{2} + 60\cdot 79^{3} + 51\cdot 79^{4} + 60\cdot 79^{5} + 35\cdot 79^{6} + 49\cdot 79^{7} + 17\cdot 79^{8} + 14\cdot 79^{9} +O(79^{10})\) Copy content Toggle raw display
$r_{ 7 }$ $=$ \( 65 + 32\cdot 79 + 26\cdot 79^{2} + 34\cdot 79^{3} + 25\cdot 79^{4} + 63\cdot 79^{5} + 58\cdot 79^{6} + 13\cdot 79^{7} + 16\cdot 79^{8} + 27\cdot 79^{9} +O(79^{10})\) Copy content Toggle raw display
$r_{ 8 }$ $=$ \( 77 + 46\cdot 79 + 14\cdot 79^{2} + 79^{3} + 35\cdot 79^{4} + 78\cdot 79^{5} + 31\cdot 79^{6} + 63\cdot 79^{7} + 46\cdot 79^{8} + 38\cdot 79^{9} +O(79^{10})\) Copy content Toggle raw display

Generators of the action on the roots $r_1, \ldots, r_{ 8 }$

Cycle notation
$(1,8)(2,7)(3,6)(4,5)$
$(1,4,8,5)(2,3,7,6)$
$(1,2,8,7)(3,4,6,5)$

Character values on conjugacy classes

SizeOrderAction on $r_1, \ldots, r_{ 8 }$ Character values
$c1$
$1$ $1$ $()$ $2$
$1$ $2$ $(1,8)(2,7)(3,6)(4,5)$ $-2$
$2$ $4$ $(1,2,8,7)(3,4,6,5)$ $0$
$2$ $4$ $(1,4,8,5)(2,3,7,6)$ $0$
$2$ $4$ $(1,3,8,6)(2,5,7,4)$ $0$
The blue line marks the conjugacy class containing complex conjugation.