Basic invariants
Dimension: | $2$ |
Group: | $D_{6}$ |
Conductor: | \(680\)\(\medspace = 2^{3} \cdot 5 \cdot 17 \) |
Frobenius-Schur indicator: | $1$ |
Root number: | $1$ |
Artin stem field: | Galois closure of 6.0.62886400.1 |
Galois orbit size: | $1$ |
Smallest permutation container: | $D_{6}$ |
Parity: | odd |
Determinant: | 1.680.2t1.b.a |
Projective image: | $S_3$ |
Projective stem field: | Galois closure of 3.1.680.1 |
Defining polynomial
$f(x)$ | $=$ |
\( x^{6} - 2x^{5} + 3x^{4} + 2x^{3} + 31x^{2} + 4x + 4 \)
|
The roots of $f$ are computed in an extension of $\Q_{ 7 }$ to precision 10.
Minimal polynomial of a generator $a$ of $K$ over $\mathbb{Q}_{ 7 }$:
\( x^{2} + 6x + 3 \)
Roots:
$r_{ 1 }$ | $=$ |
\( a + 4 + 3 a\cdot 7 + \left(2 a + 6\right)\cdot 7^{2} + \left(5 a + 4\right)\cdot 7^{3} + \left(2 a + 1\right)\cdot 7^{4} + 7^{5} + \left(5 a + 1\right)\cdot 7^{6} + \left(5 a + 4\right)\cdot 7^{8} + \left(a + 1\right)\cdot 7^{9} +O(7^{10})\)
|
$r_{ 2 }$ | $=$ |
\( 2 a + 4 + 5\cdot 7^{2} + \left(3 a + 6\right)\cdot 7^{3} + \left(2 a + 5\right)\cdot 7^{4} + \left(a + 4\right)\cdot 7^{5} + 3\cdot 7^{6} + \left(4 a + 2\right)\cdot 7^{7} + \left(3 a + 6\right)\cdot 7^{8} + \left(a + 6\right)\cdot 7^{9} +O(7^{10})\)
|
$r_{ 3 }$ | $=$ |
\( 6 a + 5 + \left(3 a + 2\right)\cdot 7 + \left(4 a + 5\right)\cdot 7^{2} + a\cdot 7^{3} + \left(4 a + 6\right)\cdot 7^{4} + \left(6 a + 5\right)\cdot 7^{5} + \left(a + 5\right)\cdot 7^{6} + \left(6 a + 2\right)\cdot 7^{7} + \left(a + 1\right)\cdot 7^{8} + \left(5 a + 5\right)\cdot 7^{9} +O(7^{10})\)
|
$r_{ 4 }$ | $=$ |
\( 6 + 3\cdot 7 + 2\cdot 7^{2} + 7^{3} + 6\cdot 7^{4} + 6\cdot 7^{5} + 6\cdot 7^{6} + 3\cdot 7^{7} + 7^{8} +O(7^{10})\)
|
$r_{ 5 }$ | $=$ |
\( 5 + 4\cdot 7^{2} + 4\cdot 7^{3} + 2\cdot 7^{4} + 5\cdot 7^{5} + 5\cdot 7^{7} + 7^{8} + 2\cdot 7^{9} +O(7^{10})\)
|
$r_{ 6 }$ | $=$ |
\( 5 a + 6 + \left(6 a + 5\right)\cdot 7 + \left(6 a + 4\right)\cdot 7^{2} + \left(3 a + 2\right)\cdot 7^{3} + \left(4 a + 5\right)\cdot 7^{4} + \left(5 a + 3\right)\cdot 7^{5} + \left(6 a + 2\right)\cdot 7^{6} + \left(2 a + 6\right)\cdot 7^{7} + \left(3 a + 5\right)\cdot 7^{8} + \left(5 a + 4\right)\cdot 7^{9} +O(7^{10})\)
|
Generators of the action on the roots $r_1, \ldots, r_{ 6 }$
Cycle notation |
Character values on conjugacy classes
Size | Order | Action on $r_1, \ldots, r_{ 6 }$ | Character value | Complex conjugation |
$1$ | $1$ | $()$ | $2$ | |
$1$ | $2$ | $(1,6)(2,3)(4,5)$ | $-2$ | |
$3$ | $2$ | $(2,5)(3,4)$ | $0$ | |
$3$ | $2$ | $(1,2)(3,6)(4,5)$ | $0$ | ✓ |
$2$ | $3$ | $(1,4,3)(2,6,5)$ | $-1$ | |
$2$ | $6$ | $(1,2,4,6,3,5)$ | $1$ |