Properties

Label 2.2e2_3_13_37.4t3.11c1
Dimension 2
Group $D_4$
Conductor $ 2^{2} \cdot 3 \cdot 13 \cdot 37 $
Root number 1
Frobenius-Schur indicator 1

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Basic invariants

Dimension:$2$
Group:$D_4$
Conductor:$5772= 2^{2} \cdot 3 \cdot 13 \cdot 37 $
Artin number field: Splitting field of $f= x^{8} - 4 x^{7} + 92 x^{6} - 262 x^{5} + 1889 x^{4} - 3346 x^{3} + 8086 x^{2} - 6456 x + 5136 $ over $\Q$
Size of Galois orbit: 1
Smallest containing permutation representation: $D_{4}$
Parity: Even
Determinant: 1.2e2_3_13_37.2t1.1c1

Galois action

Roots of defining polynomial

The roots of $f$ are computed in $\Q_{ 97 }$ to precision 6.
Roots:
$r_{ 1 }$ $=$ $ 5 + 61\cdot 97 + 89\cdot 97^{2} + 45\cdot 97^{3} + 31\cdot 97^{4} + 25\cdot 97^{5} +O\left(97^{ 6 }\right)$
$r_{ 2 }$ $=$ $ 17 + 96\cdot 97 + 17\cdot 97^{2} + 49\cdot 97^{3} + 36\cdot 97^{4} + 44\cdot 97^{5} +O\left(97^{ 6 }\right)$
$r_{ 3 }$ $=$ $ 23 + 52\cdot 97 + 72\cdot 97^{2} + 29\cdot 97^{3} + 91\cdot 97^{4} + 92\cdot 97^{5} +O\left(97^{ 6 }\right)$
$r_{ 4 }$ $=$ $ 33 + 5\cdot 97 + 11\cdot 97^{2} + 62\cdot 97^{3} + 42\cdot 97^{4} + 10\cdot 97^{5} +O\left(97^{ 6 }\right)$
$r_{ 5 }$ $=$ $ 65 + 91\cdot 97 + 85\cdot 97^{2} + 34\cdot 97^{3} + 54\cdot 97^{4} + 86\cdot 97^{5} +O\left(97^{ 6 }\right)$
$r_{ 6 }$ $=$ $ 75 + 44\cdot 97 + 24\cdot 97^{2} + 67\cdot 97^{3} + 5\cdot 97^{4} + 4\cdot 97^{5} +O\left(97^{ 6 }\right)$
$r_{ 7 }$ $=$ $ 81 + 79\cdot 97^{2} + 47\cdot 97^{3} + 60\cdot 97^{4} + 52\cdot 97^{5} +O\left(97^{ 6 }\right)$
$r_{ 8 }$ $=$ $ 93 + 35\cdot 97 + 7\cdot 97^{2} + 51\cdot 97^{3} + 65\cdot 97^{4} + 71\cdot 97^{5} +O\left(97^{ 6 }\right)$

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

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

Character values on conjugacy classes

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