Basic invariants
| Dimension: | $4$ |
| Group: | $\PGL(2,5)$ |
| Conductor: | \(33792250337\)\(\medspace = 53^{3} \cdot 61^{3} \) |
| Frobenius-Schur indicator: | $1$ |
| Root number: | $1$ |
| Artin stem field: | Galois closure of 6.2.33792250337.1 |
| Galois orbit size: | $1$ |
| Smallest permutation container: | $S_5$ |
| Parity: | even |
| Determinant: | 1.3233.2t1.a.a |
| Projective image: | $S_5$ |
| Projective stem field: | Galois closure of 6.2.33792250337.1 |
Defining polynomial
| $f(x)$ | $=$ |
\( x^{6} - x^{5} - 19x^{4} + 58x^{3} + 220x^{2} - 112x - 741 \)
|
The roots of $f$ are computed in an extension of $\Q_{ 13 }$ to precision 5.
Minimal polynomial of a generator $a$ of $K$ over $\mathbb{Q}_{ 13 }$:
\( x^{2} + 12x + 2 \)
Roots:
| $r_{ 1 }$ | $=$ |
\( 13 + 8\cdot 13^{2} + 10\cdot 13^{3} + 12\cdot 13^{4} +O(13^{5})\)
|
| $r_{ 2 }$ | $=$ |
\( 5 a + 12 + \left(6 a + 8\right)\cdot 13 + \left(3 a + 6\right)\cdot 13^{2} + \left(12 a + 3\right)\cdot 13^{3} + \left(7 a + 4\right)\cdot 13^{4} +O(13^{5})\)
|
| $r_{ 3 }$ | $=$ |
\( 4 + 2\cdot 13 + 8\cdot 13^{2} + 12\cdot 13^{3} + 9\cdot 13^{4} +O(13^{5})\)
|
| $r_{ 4 }$ | $=$ |
\( 8 a + 6 + \left(3 a + 10\right)\cdot 13 + \left(7 a + 10\right)\cdot 13^{2} + \left(2 a + 8\right)\cdot 13^{3} + \left(4 a + 11\right)\cdot 13^{4} +O(13^{5})\)
|
| $r_{ 5 }$ | $=$ |
\( 8 a + 4 + \left(6 a + 10\right)\cdot 13 + \left(9 a + 3\right)\cdot 13^{2} + 12\cdot 13^{3} + \left(5 a + 12\right)\cdot 13^{4} +O(13^{5})\)
|
| $r_{ 6 }$ | $=$ |
\( 5 a + 1 + \left(9 a + 6\right)\cdot 13 + \left(5 a + 1\right)\cdot 13^{2} + \left(10 a + 4\right)\cdot 13^{3} + 8 a\cdot 13^{4} +O(13^{5})\)
|
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 |
| $1$ | $1$ | $()$ | $4$ |
| $10$ | $2$ | $(1,3)(2,4)(5,6)$ | $-2$ |
| $15$ | $2$ | $(1,3)(4,6)$ | $0$ |
| $20$ | $3$ | $(1,6,5)(2,3,4)$ | $1$ |
| $30$ | $4$ | $(1,4,3,6)$ | $0$ |
| $24$ | $5$ | $(1,5,4,6,2)$ | $-1$ |
| $20$ | $6$ | $(1,4,6,2,5,3)$ | $1$ |
The blue line marks the conjugacy class containing complex conjugation.