Basic invariants
| Dimension: | $35$ |
| Group: | $S_7$ |
| Conductor: | \(393\!\cdots\!551\)\(\medspace = 202471^{15} \) |
| Frobenius-Schur indicator: | $1$ |
| Root number: | $1$ |
| Artin stem field: | Galois closure of 7.1.202471.1 |
| Galois orbit size: | $1$ |
| Smallest permutation container: | 70 |
| Parity: | odd |
| Determinant: | 1.202471.2t1.a.a |
| Projective image: | $S_7$ |
| Projective stem field: | Galois closure of 7.1.202471.1 |
Defining polynomial
| $f(x)$ | $=$ |
\( x^{7} - x^{6} - x^{5} + 2x^{4} - x^{2} + 1 \)
|
The roots of $f$ are computed in an extension of $\Q_{ 31 }$ to precision 5.
Minimal polynomial of a generator $a$ of $K$ over $\mathbb{Q}_{ 31 }$:
\( x^{2} + 29x + 3 \)
Roots:
| $r_{ 1 }$ | $=$ |
\( 8 + 2\cdot 31 + 16\cdot 31^{2} + 19\cdot 31^{3} + 14\cdot 31^{4} +O(31^{5})\)
|
| $r_{ 2 }$ | $=$ |
\( 12 a + 3 + \left(a + 2\right)\cdot 31 + 30 a\cdot 31^{2} + \left(25 a + 19\right)\cdot 31^{3} + \left(8 a + 23\right)\cdot 31^{4} +O(31^{5})\)
|
| $r_{ 3 }$ | $=$ |
\( 4 a + 3 + \left(17 a + 25\right)\cdot 31 + \left(30 a + 4\right)\cdot 31^{2} + \left(18 a + 12\right)\cdot 31^{3} + \left(8 a + 25\right)\cdot 31^{4} +O(31^{5})\)
|
| $r_{ 4 }$ | $=$ |
\( 27 a + 11 + \left(13 a + 24\right)\cdot 31 + 17\cdot 31^{2} + \left(12 a + 19\right)\cdot 31^{3} + \left(22 a + 23\right)\cdot 31^{4} +O(31^{5})\)
|
| $r_{ 5 }$ | $=$ |
\( 9 a + 12 + \left(30 a + 28\right)\cdot 31 + \left(24 a + 18\right)\cdot 31^{2} + \left(22 a + 11\right)\cdot 31^{3} + \left(16 a + 5\right)\cdot 31^{4} +O(31^{5})\)
|
| $r_{ 6 }$ | $=$ |
\( 19 a + 27 + \left(29 a + 23\right)\cdot 31 + 27\cdot 31^{2} + \left(5 a + 9\right)\cdot 31^{3} + \left(22 a + 15\right)\cdot 31^{4} +O(31^{5})\)
|
| $r_{ 7 }$ | $=$ |
\( 22 a + 30 + 17\cdot 31 + \left(6 a + 7\right)\cdot 31^{2} + \left(8 a + 1\right)\cdot 31^{3} + \left(14 a + 16\right)\cdot 31^{4} +O(31^{5})\)
|
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 |
| $1$ | $1$ | $()$ | $35$ |
| $21$ | $2$ | $(1,2)$ | $5$ |
| $105$ | $2$ | $(1,2)(3,4)(5,6)$ | $1$ |
| $105$ | $2$ | $(1,2)(3,4)$ | $-1$ |
| $70$ | $3$ | $(1,2,3)$ | $-1$ |
| $280$ | $3$ | $(1,2,3)(4,5,6)$ | $-1$ |
| $210$ | $4$ | $(1,2,3,4)$ | $-1$ |
| $630$ | $4$ | $(1,2,3,4)(5,6)$ | $1$ |
| $504$ | $5$ | $(1,2,3,4,5)$ | $0$ |
| $210$ | $6$ | $(1,2,3)(4,5)(6,7)$ | $-1$ |
| $420$ | $6$ | $(1,2,3)(4,5)$ | $-1$ |
| $840$ | $6$ | $(1,2,3,4,5,6)$ | $1$ |
| $720$ | $7$ | $(1,2,3,4,5,6,7)$ | $0$ |
| $504$ | $10$ | $(1,2,3,4,5)(6,7)$ | $0$ |
| $420$ | $12$ | $(1,2,3,4)(5,6,7)$ | $-1$ |
The blue line marks the conjugacy class containing complex conjugation.