Basic invariants
| Dimension: | $3$ |
| Group: | $A_5$ |
| Conductor: | \(40000\)\(\medspace = 2^{6} \cdot 5^{4} \) |
| Frobenius-Schur indicator: | $1$ |
| Root number: | $1$ |
| Artin stem field: | Galois closure of 5.1.25000000.4 |
| Galois orbit size: | $2$ |
| Smallest permutation container: | $A_5$ |
| Parity: | even |
| Determinant: | 1.1.1t1.a.a |
| Projective image: | $A_5$ |
| Projective stem field: | Galois closure of 5.1.25000000.4 |
Defining polynomial
| $f(x)$ | $=$ |
\( x^{5} - 10x^{3} - 20x^{2} + 110x + 116 \)
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The roots of $f$ are computed in $\Q_{ 197 }$ to precision 5.
Roots:
| $r_{ 1 }$ | $=$ |
\( 1 + 35\cdot 197 + 165\cdot 197^{2} + 58\cdot 197^{3} + 14\cdot 197^{4} +O(197^{5})\)
|
| $r_{ 2 }$ | $=$ |
\( 85 + 40\cdot 197 + 153\cdot 197^{2} + 25\cdot 197^{3} + 182\cdot 197^{4} +O(197^{5})\)
|
| $r_{ 3 }$ | $=$ |
\( 154 + 93\cdot 197 + 186\cdot 197^{2} + 155\cdot 197^{3} + 60\cdot 197^{4} +O(197^{5})\)
|
| $r_{ 4 }$ | $=$ |
\( 164 + 150\cdot 197 + 104\cdot 197^{2} + 75\cdot 197^{3} + 110\cdot 197^{4} +O(197^{5})\)
|
| $r_{ 5 }$ | $=$ |
\( 187 + 73\cdot 197 + 178\cdot 197^{2} + 77\cdot 197^{3} + 26\cdot 197^{4} +O(197^{5})\)
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Generators of the action on the roots $r_1, \ldots, r_{ 5 }$
| Cycle notation |
Character values on conjugacy classes
| Size | Order | Action on $r_1, \ldots, r_{ 5 }$ | Character value |
| $1$ | $1$ | $()$ | $3$ |
| $15$ | $2$ | $(1,2)(3,4)$ | $-1$ |
| $20$ | $3$ | $(1,2,3)$ | $0$ |
| $12$ | $5$ | $(1,2,3,4,5)$ | $-\zeta_{5}^{3} - \zeta_{5}^{2}$ |
| $12$ | $5$ | $(1,3,4,5,2)$ | $\zeta_{5}^{3} + \zeta_{5}^{2} + 1$ |
The blue line marks the conjugacy class containing complex conjugation.