Basic invariants
Dimension: | $2$ |
Group: | $D_{10}$ |
Conductor: | \(2855\)\(\medspace = 5 \cdot 571 \) |
Frobenius-Schur indicator: | $1$ |
Root number: | $1$ |
Artin stem field: | Galois closure of 10.0.37936788082406875.1 |
Galois orbit size: | $2$ |
Smallest permutation container: | $D_{10}$ |
Parity: | odd |
Determinant: | 1.2855.2t1.a.a |
Projective image: | $D_5$ |
Projective stem field: | Galois closure of 5.1.8151025.1 |
Defining polynomial
$f(x)$ | $=$ | \( x^{10} - 4 x^{9} - 19 x^{8} + 160 x^{7} - 141 x^{6} - 1968 x^{5} + 9190 x^{4} - 19678 x^{3} + \cdots + 4255 \) . |
The roots of $f$ are computed in an extension of $\Q_{ 11 }$ to precision 10.
Minimal polynomial of a generator $a$ of $K$ over $\mathbb{Q}_{ 11 }$: \( x^{5} + 10x^{2} + 9 \)
Roots:
$r_{ 1 }$ | $=$ | \( 5 a^{4} + 6 a^{3} + a^{2} + 10 a + 10 + \left(5 a^{4} + 10 a^{3} + 4 a^{2} + 9 a + 3\right)\cdot 11 + \left(7 a^{4} + 7 a^{3} + 7 a^{2} + 9 a + 10\right)\cdot 11^{2} + \left(7 a^{4} + 9 a^{2} + 2 a + 10\right)\cdot 11^{3} + \left(8 a^{4} + 7 a^{3} + 7 a^{2} + 5 a + 4\right)\cdot 11^{4} + \left(6 a^{4} + a^{3} + 3 a^{2} + 7 a + 5\right)\cdot 11^{5} + \left(7 a^{4} + 10 a^{3} + 10 a^{2} + 4 a + 1\right)\cdot 11^{6} + \left(4 a^{4} + a^{3} + 8 a^{2} + 7\right)\cdot 11^{7} + \left(5 a^{3} + 4 a + 4\right)\cdot 11^{8} + \left(5 a^{4} + a^{3} + 7 a^{2} + 7 a + 4\right)\cdot 11^{9} +O(11^{10})\) |
$r_{ 2 }$ | $=$ | \( 8 a^{4} + a^{3} + 7 a^{2} + 2 + \left(2 a^{4} + a^{3} + 10 a + 2\right)\cdot 11 + \left(4 a^{4} + 9 a^{3} + 6 a^{2} + 7 a + 6\right)\cdot 11^{2} + \left(8 a^{4} + 10 a^{3} + 6 a^{2} + 4 a + 5\right)\cdot 11^{3} + \left(10 a^{4} + 4 a^{3} + 5 a^{2} + 2 a + 3\right)\cdot 11^{4} + \left(9 a^{3} + 6 a^{2} + 8 a + 8\right)\cdot 11^{5} + \left(9 a^{4} + 10 a^{3} + 10 a^{2} + 3 a + 5\right)\cdot 11^{6} + \left(2 a^{4} + 2 a^{2} + 9 a + 1\right)\cdot 11^{7} + \left(6 a^{4} + 8 a^{3} + 10 a^{2} + 6 a\right)\cdot 11^{8} + \left(3 a^{4} + 8 a^{3} + 9 a^{2} + 8 a + 4\right)\cdot 11^{9} +O(11^{10})\) |
$r_{ 3 }$ | $=$ | \( 10 a^{4} + 2 a^{3} + 3 a^{2} + 6 a + 8 + \left(3 a^{4} + 6 a^{3} + 7 a^{2} + 6 a + 10\right)\cdot 11 + \left(4 a^{4} + 9 a^{3} + 9 a^{2} + 4 a + 8\right)\cdot 11^{2} + \left(5 a^{4} + 5 a^{2} + 2 a\right)\cdot 11^{3} + \left(5 a^{4} + a^{3} + 9 a^{2} + 8 a + 2\right)\cdot 11^{4} + \left(7 a^{4} + 8 a^{3} + 10 a^{2} + 8 a\right)\cdot 11^{5} + \left(a^{4} + 3 a^{3} + 2 a^{2} + a + 7\right)\cdot 11^{6} + \left(a^{4} + 5 a^{3} + 5 a^{2} + 5\right)\cdot 11^{7} + \left(9 a^{4} + 9 a^{3} + 2 a^{2} + 6 a + 8\right)\cdot 11^{8} + \left(2 a^{4} + a^{3} + 7 a^{2} + 3 a + 6\right)\cdot 11^{9} +O(11^{10})\) |
$r_{ 4 }$ | $=$ | \( 5 a^{4} + 3 a^{3} + 8 a + 3 + \left(7 a^{4} + a^{3} + 5 a^{2} + 10 a + 3\right)\cdot 11 + \left(7 a^{4} + 6 a^{3} + 4 a^{2} + 2 a + 10\right)\cdot 11^{2} + \left(3 a^{4} + 2 a^{2} + 3 a + 9\right)\cdot 11^{3} + \left(9 a^{4} + 3 a^{3} + 9 a^{2} + 5 a + 2\right)\cdot 11^{4} + \left(2 a^{4} + 2 a^{3} + 8 a^{2} + 6 a + 9\right)\cdot 11^{5} + \left(10 a^{4} + 9 a^{2} + 6 a + 7\right)\cdot 11^{6} + \left(2 a^{4} + 10 a^{3} + 6 a^{2} + 2 a\right)\cdot 11^{7} + \left(7 a^{4} + 2 a^{3} + 9 a^{2} + 8 a + 2\right)\cdot 11^{8} + \left(2 a^{4} + 4 a^{3} + 5 a^{2} + 3 a + 10\right)\cdot 11^{9} +O(11^{10})\) |
$r_{ 5 }$ | $=$ | \( 6 a^{4} + 3 a^{3} + 3 a^{2} + 8 a + 3 + \left(9 a^{4} + 7 a^{3} + 3 a^{2} + 9 a + 6\right)\cdot 11 + \left(5 a^{4} + 2 a^{3} + 8 a^{2} + 4 a\right)\cdot 11^{2} + \left(4 a^{4} + 10 a^{3} + 3 a^{2} + 6 a + 2\right)\cdot 11^{3} + \left(5 a^{4} + 10 a^{3} + 5 a^{2} + 10 a + 6\right)\cdot 11^{4} + \left(6 a^{4} + 10 a^{3} + 10 a^{2} + 6 a + 6\right)\cdot 11^{5} + \left(7 a^{4} + a^{2} + 8 a + 1\right)\cdot 11^{6} + \left(10 a^{4} + 6 a^{3} + 9 a^{2} + 10 a + 10\right)\cdot 11^{7} + \left(5 a^{4} + 10 a^{3} + 4 a^{2} + 8 a + 3\right)\cdot 11^{8} + \left(4 a^{4} + 8 a^{3} + a^{2} + 5 a + 5\right)\cdot 11^{9} +O(11^{10})\) |
$r_{ 6 }$ | $=$ | \( a^{4} + 5 a^{3} + a^{2} + 9 a + 4 + \left(6 a^{4} + a^{2} + 3 a + 9\right)\cdot 11 + \left(10 a^{4} + 2 a^{3} + 2 a^{2} + 2 a + 7\right)\cdot 11^{2} + \left(8 a^{4} + 7 a^{2} + 7\right)\cdot 11^{3} + \left(8 a^{4} + 6 a^{3} + 5 a + 9\right)\cdot 11^{4} + \left(10 a^{4} + 8 a^{3} + 5 a^{2} + a + 2\right)\cdot 11^{5} + \left(6 a^{4} + 8 a^{3} + 7 a^{2} + 3 a + 4\right)\cdot 11^{6} + \left(a^{4} + 6 a^{3} + 9 a^{2} + 4 a + 3\right)\cdot 11^{7} + \left(5 a^{4} + 6 a^{3} + 4 a^{2} + a + 2\right)\cdot 11^{8} + \left(8 a^{3} + a^{2} + 9 a + 3\right)\cdot 11^{9} +O(11^{10})\) |
$r_{ 7 }$ | $=$ | \( 5 a^{4} + 2 a^{3} + 9 a^{2} + 5 a + 8 + \left(4 a^{4} + 3 a^{3} + 10 a^{2} + 7 a + 3\right)\cdot 11 + \left(4 a^{4} + 6 a^{3} + a^{2} + 5 a\right)\cdot 11^{2} + \left(6 a^{4} + 3 a^{3} + 7 a^{2} + 4 a + 6\right)\cdot 11^{3} + \left(a^{4} + 3 a^{3} + 6 a^{2} + 4\right)\cdot 11^{4} + \left(5 a^{4} + 6 a^{3} + 7 a^{2} + 5 a\right)\cdot 11^{5} + \left(8 a^{4} + a^{3} + 7 a^{2} + 8 a + 5\right)\cdot 11^{6} + \left(a^{4} + 5 a^{3} + 4 a^{2} + 9 a + 4\right)\cdot 11^{7} + \left(8 a^{4} + 6 a^{3} + 7 a + 1\right)\cdot 11^{8} + \left(9 a^{4} + 2 a^{3} + 6 a^{2} + a\right)\cdot 11^{9} +O(11^{10})\) |
$r_{ 8 }$ | $=$ | \( 5 a^{4} + 3 a^{3} + 3 a^{2} + 3 a + 3 + \left(3 a^{4} + 10 a^{3} + 9 a^{2} + 9 a + 2\right)\cdot 11 + \left(a^{4} + a^{3} + 10 a^{2} + 7\right)\cdot 11^{2} + \left(9 a^{4} + 6 a^{3} + 10 a^{2} + 7 a + 10\right)\cdot 11^{3} + \left(5 a^{4} + 9 a^{3} + a^{2} + 5 a + 8\right)\cdot 11^{4} + \left(5 a^{4} + 6 a^{3} + 10 a^{2} + 4 a + 3\right)\cdot 11^{5} + \left(3 a^{4} + 5 a^{3} + a^{2} + a + 7\right)\cdot 11^{6} + \left(2 a^{4} + 2 a^{2} + 9\right)\cdot 11^{7} + \left(2 a^{4} + 6 a^{3} + 10 a^{2} + 4 a + 9\right)\cdot 11^{8} + \left(3 a^{4} + 4 a^{3} + 3 a^{2} + 4 a\right)\cdot 11^{9} +O(11^{10})\) |
$r_{ 9 }$ | $=$ | \( 9 a^{4} + 4 a^{3} + 4 a^{2} + 9 + \left(6 a^{4} + 6 a^{3} + 9 a^{2} + 7 a\right)\cdot 11 + \left(6 a^{4} + 4 a^{3} + 9 a^{2} + 8 a + 1\right)\cdot 11^{2} + \left(10 a^{4} + a^{3} + 5 a^{2} + 6 a + 4\right)\cdot 11^{3} + \left(8 a^{4} + 2 a^{3} + 4 a^{2} + a + 8\right)\cdot 11^{4} + \left(4 a^{4} + 9 a^{3} + 2 a^{2} + 4 a + 6\right)\cdot 11^{5} + \left(3 a^{4} + 5 a^{3} + 9 a^{2} + 4 a + 8\right)\cdot 11^{6} + \left(7 a^{4} + 6 a^{3} + 8 a^{2} + 7 a + 1\right)\cdot 11^{7} + \left(8 a^{4} + 9 a^{3} + 3 a^{2} + 2 a + 9\right)\cdot 11^{8} + \left(3 a^{4} + a^{3} + 9 a^{2} + 6 a + 6\right)\cdot 11^{9} +O(11^{10})\) |
$r_{ 10 }$ | $=$ | \( a^{4} + 4 a^{3} + 2 a^{2} + 6 a + 9 + \left(5 a^{4} + 8 a^{3} + 4 a^{2} + 2 a + 1\right)\cdot 11 + \left(2 a^{4} + 4 a^{3} + 5 a^{2} + 7 a + 2\right)\cdot 11^{2} + \left(a^{4} + 9 a^{3} + 6 a^{2} + 5 a + 8\right)\cdot 11^{3} + \left(a^{4} + 6 a^{3} + 3 a^{2} + 10 a + 3\right)\cdot 11^{4} + \left(4 a^{4} + 2 a^{3} + a\right)\cdot 11^{5} + \left(7 a^{4} + 7 a^{3} + 4 a^{2} + a + 6\right)\cdot 11^{6} + \left(8 a^{4} + 7 a^{2} + 10 a + 10\right)\cdot 11^{7} + \left(a^{4} + a^{3} + 7 a^{2} + 4 a + 1\right)\cdot 11^{8} + \left(8 a^{4} + a^{3} + 2 a^{2} + 4 a + 2\right)\cdot 11^{9} +O(11^{10})\) |
Generators of the action on the roots $r_1, \ldots, r_{ 10 }$
Cycle notation |
Character values on conjugacy classes
Size | Order | Action on $r_1, \ldots, r_{ 10 }$ | Character value |
$1$ | $1$ | $()$ | $2$ |
$1$ | $2$ | $(1,2)(3,9)(4,10)(5,7)(6,8)$ | $-2$ |
$5$ | $2$ | $(1,5)(2,7)(4,8)(6,10)$ | $0$ |
$5$ | $2$ | $(1,7)(2,5)(3,9)(4,6)(8,10)$ | $0$ |
$2$ | $5$ | $(1,10,9,6,5)(2,4,3,8,7)$ | $-\zeta_{5}^{3} - \zeta_{5}^{2} - 1$ |
$2$ | $5$ | $(1,9,5,10,6)(2,3,7,4,8)$ | $\zeta_{5}^{3} + \zeta_{5}^{2}$ |
$2$ | $10$ | $(1,4,9,8,5,2,10,3,6,7)$ | $\zeta_{5}^{3} + \zeta_{5}^{2} + 1$ |
$2$ | $10$ | $(1,8,10,7,9,2,6,4,5,3)$ | $-\zeta_{5}^{3} - \zeta_{5}^{2}$ |
The blue line marks the conjugacy class containing complex conjugation.