Basic invariants
Dimension: | $3$ |
Group: | $A_4$ |
Conductor: | \(3087049\)\(\medspace = 7^{2} \cdot 251^{2} \) |
Frobenius-Schur indicator: | $1$ |
Root number: | $1$ |
Artin stem field: | Galois closure of 4.4.3087049.1 |
Galois orbit size: | $1$ |
Smallest permutation container: | $A_4$ |
Parity: | even |
Determinant: | 1.1.1t1.a.a |
Projective image: | $A_4$ |
Projective stem field: | Galois closure of 4.4.3087049.1 |
Defining polynomial
$f(x)$ | $=$ | \( x^{4} - x^{3} - 21x^{2} + 42x + 7 \) . |
The roots of $f$ are computed in $\Q_{ 41 }$ to precision 5.
Roots:
$r_{ 1 }$ | $=$ | \( 8 + 15\cdot 41 + 17\cdot 41^{2} + 29\cdot 41^{3} + 26\cdot 41^{4} +O(41^{5})\) |
$r_{ 2 }$ | $=$ | \( 19 + 5\cdot 41 + 17\cdot 41^{3} + 3\cdot 41^{4} +O(41^{5})\) |
$r_{ 3 }$ | $=$ | \( 25 + 15\cdot 41 + 18\cdot 41^{2} + 30\cdot 41^{3} + 25\cdot 41^{4} +O(41^{5})\) |
$r_{ 4 }$ | $=$ | \( 31 + 4\cdot 41 + 5\cdot 41^{2} + 5\cdot 41^{3} + 26\cdot 41^{4} +O(41^{5})\) |
Generators of the action on the roots $r_1, \ldots, r_{ 4 }$
Cycle notation |
Character values on conjugacy classes
Size | Order | Action on $r_1, \ldots, r_{ 4 }$ | Character value |
$1$ | $1$ | $()$ | $3$ |
$3$ | $2$ | $(1,2)(3,4)$ | $-1$ |
$4$ | $3$ | $(1,2,3)$ | $0$ |
$4$ | $3$ | $(1,3,2)$ | $0$ |
The blue line marks the conjugacy class containing complex conjugation.