Properties

Label 2.42025.8t5.a
Dimension $2$
Group $Q_8$
Conductor $42025$
Indicator $-1$

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Basic invariants

Dimension:$2$
Group:$Q_8$
Conductor:\(42025\)\(\medspace = 5^{2} \cdot 41^{2} \)
Frobenius-Schur indicator: $-1$
Root number: $-1$
Artin number field: Galois closure of 8.8.74220378765625.1
Galois orbit size: $1$
Smallest permutation container: $Q_8$
Parity: even
Projective image: $C_2^2$
Projective field: Galois closure of \(\Q(\sqrt{5}, \sqrt{41})\)

Galois action

Roots of defining polynomial

The roots of $f$ are computed in $\Q_{ 251 }$ to precision 5.
Roots:
$r_{ 1 }$ $=$ \( 31 + 114\cdot 251^{2} + 222\cdot 251^{3} + 73\cdot 251^{4} +O(251^{5})\) Copy content Toggle raw display
$r_{ 2 }$ $=$ \( 56 + 6\cdot 251 + 134\cdot 251^{2} + 68\cdot 251^{3} + 186\cdot 251^{4} +O(251^{5})\) Copy content Toggle raw display
$r_{ 3 }$ $=$ \( 58 + 181\cdot 251 + 246\cdot 251^{2} + 82\cdot 251^{3} + 47\cdot 251^{4} +O(251^{5})\) Copy content Toggle raw display
$r_{ 4 }$ $=$ \( 82 + 29\cdot 251 + 179\cdot 251^{2} + 198\cdot 251^{3} + 231\cdot 251^{4} +O(251^{5})\) Copy content Toggle raw display
$r_{ 5 }$ $=$ \( 135 + 142\cdot 251 + 64\cdot 251^{2} + 167\cdot 251^{3} + 156\cdot 251^{4} +O(251^{5})\) Copy content Toggle raw display
$r_{ 6 }$ $=$ \( 174 + 30\cdot 251 + 117\cdot 251^{2} + 189\cdot 251^{3} + 73\cdot 251^{4} +O(251^{5})\) Copy content Toggle raw display
$r_{ 7 }$ $=$ \( 225 + 239\cdot 251 + 212\cdot 251^{2} + 77\cdot 251^{3} + 239\cdot 251^{4} +O(251^{5})\) Copy content Toggle raw display
$r_{ 8 }$ $=$ \( 246 + 122\cdot 251 + 186\cdot 251^{2} + 247\cdot 251^{3} + 245\cdot 251^{4} +O(251^{5})\) Copy content Toggle raw display

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

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

Character values on conjugacy classes

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