Basic invariants
Dimension: | $14$ |
Group: | $S_7$ |
Conductor: | \(139\!\cdots\!041\)\(\medspace = 193327^{4} \) |
Frobenius-Schur indicator: | $1$ |
Root number: | $1$ |
Artin stem field: | Galois closure of 7.1.193327.1 |
Galois orbit size: | $1$ |
Smallest permutation container: | 21T38 |
Parity: | even |
Determinant: | 1.1.1t1.a.a |
Projective image: | $S_7$ |
Projective stem field: | Galois closure of 7.1.193327.1 |
Defining polynomial
$f(x)$ | $=$ | \( x^{7} - x^{6} + 2x^{4} - 2x^{3} + 2x - 1 \) . |
The roots of $f$ are computed in an extension of $\Q_{ 83 }$ to precision 5.
Minimal polynomial of a generator $a$ of $K$ over $\mathbb{Q}_{ 83 }$: \( x^{2} + 82x + 2 \)
Roots:
$r_{ 1 }$ | $=$ |
\( 2 + 22\cdot 83 + 22\cdot 83^{2} + 70\cdot 83^{3} + 8\cdot 83^{4} +O(83^{5})\)
$r_{ 2 }$ |
$=$ |
\( 32 + 54\cdot 83 + 66\cdot 83^{2} + 19\cdot 83^{3} + 75\cdot 83^{4} +O(83^{5})\)
| $r_{ 3 }$ |
$=$ |
\( 66 + 10\cdot 83^{2} + 59\cdot 83^{3} + 7\cdot 83^{4} +O(83^{5})\)
| $r_{ 4 }$ |
$=$ |
\( 16 a + 37 + \left(78 a + 41\right)\cdot 83 + \left(47 a + 58\right)\cdot 83^{2} + \left(70 a + 28\right)\cdot 83^{3} + \left(58 a + 81\right)\cdot 83^{4} +O(83^{5})\)
| $r_{ 5 }$ |
$=$ |
\( 82 a + 72 + \left(43 a + 73\right)\cdot 83 + \left(14 a + 4\right)\cdot 83^{2} + \left(25 a + 46\right)\cdot 83^{3} + \left(19 a + 47\right)\cdot 83^{4} +O(83^{5})\)
| $r_{ 6 }$ |
$=$ |
\( a + 71 + \left(39 a + 35\right)\cdot 83 + \left(68 a + 58\right)\cdot 83^{2} + \left(57 a + 56\right)\cdot 83^{3} + \left(63 a + 41\right)\cdot 83^{4} +O(83^{5})\)
| $r_{ 7 }$ |
$=$ |
\( 67 a + 53 + \left(4 a + 20\right)\cdot 83 + \left(35 a + 28\right)\cdot 83^{2} + \left(12 a + 51\right)\cdot 83^{3} + \left(24 a + 69\right)\cdot 83^{4} +O(83^{5})\)
| |
Generators of the action on the roots $r_1, \ldots, r_{ 7 }$
Cycle notation |
Character values on conjugacy classes
Size | Order | Action on $r_1, \ldots, r_{ 7 }$ | Character value |
$1$ | $1$ | $()$ | $14$ |
$21$ | $2$ | $(1,2)$ | $6$ |
$105$ | $2$ | $(1,2)(3,4)(5,6)$ | $2$ |
$105$ | $2$ | $(1,2)(3,4)$ | $2$ |
$70$ | $3$ | $(1,2,3)$ | $2$ |
$280$ | $3$ | $(1,2,3)(4,5,6)$ | $-1$ |
$210$ | $4$ | $(1,2,3,4)$ | $0$ |
$630$ | $4$ | $(1,2,3,4)(5,6)$ | $0$ |
$504$ | $5$ | $(1,2,3,4,5)$ | $-1$ |
$210$ | $6$ | $(1,2,3)(4,5)(6,7)$ | $2$ |
$420$ | $6$ | $(1,2,3)(4,5)$ | $0$ |
$840$ | $6$ | $(1,2,3,4,5,6)$ | $-1$ |
$720$ | $7$ | $(1,2,3,4,5,6,7)$ | $0$ |
$504$ | $10$ | $(1,2,3,4,5)(6,7)$ | $1$ |
$420$ | $12$ | $(1,2,3,4)(5,6,7)$ | $0$ |
The blue line marks the conjugacy class containing complex conjugation.