Subgroup ($H$) information
| Description: | $C_{642}$ |
| Order: | \(642\)\(\medspace = 2 \cdot 3 \cdot 107 \) |
| Index: | \(3\) |
| Exponent: | \(642\)\(\medspace = 2 \cdot 3 \cdot 107 \) |
| Generators: |
$a^{963}, a^{1284}, a^{18}$
|
| Nilpotency class: | $1$ |
| Derived length: | $1$ |
The subgroup is the socle (hence characteristic and normal), maximal, cyclic (hence abelian, nilpotent, solvable, supersolvable, monomial, elementary ($p = 2,3,107$), hyperelementary, metacyclic, metabelian, a Z-group, and an A-group), and central.
Ambient group ($G$) information
| Description: | $C_{1926}$ |
| Order: | \(1926\)\(\medspace = 2 \cdot 3^{2} \cdot 107 \) |
| Exponent: | \(1926\)\(\medspace = 2 \cdot 3^{2} \cdot 107 \) |
| Nilpotency class: | $1$ |
| Derived length: | $1$ |
The ambient group is cyclic (hence abelian, nilpotent, solvable, supersolvable, monomial, elementary ($p = 2,3,107$), hyperelementary, metacyclic, metabelian, a Z-group, and an A-group).
Quotient group ($Q$) structure
| Description: | $C_3$ |
| Order: | \(3\) |
| Exponent: | \(3\) |
| Automorphism Group: | $C_2$, of order \(2\) |
| Outer Automorphisms: | $C_2$, of order \(2\) |
| Nilpotency class: | $1$ |
| Derived length: | $1$ |
The quotient is cyclic (hence abelian, nilpotent, solvable, supersolvable, monomial, elementary, hyperelementary, metacyclic, metabelian, a Z-group, and an A-group), a $p$-group, and simple.
Automorphism information
Since the subgroup $H$ is characteristic, the automorphism group $\operatorname{Aut}(G)$ of the ambient group acts on $H$, yielding a homomorphism $\operatorname{res} : \operatorname{Aut}(G) \to \operatorname{Aut}(H)$. The image of $\operatorname{res}$ on the inner automorphism group $\operatorname{Inn}(G)$ is the Weyl group $W = G / Z_G(H)$.
| $\operatorname{Aut}(G)$ | $C_2\times C_{318}$, of order \(636\)\(\medspace = 2^{2} \cdot 3 \cdot 53 \) |
| $\operatorname{Aut}(H)$ | $C_2\times C_{106}$, of order \(212\)\(\medspace = 2^{2} \cdot 53 \) |
| $\operatorname{res}(\operatorname{Aut}(G))$ | $C_2\times C_{106}$, of order \(212\)\(\medspace = 2^{2} \cdot 53 \) |
| $\card{\operatorname{ker}(\operatorname{res})}$ | \(3\) |
| $W$ | $C_1$, of order $1$ |
Related subgroups
| Centralizer: | $C_{1926}$ | ||
| Normalizer: | $C_{1926}$ | ||
| Minimal over-subgroups: | $C_{1926}$ | ||
| Maximal under-subgroups: | $C_{321}$ | $C_{214}$ | $C_6$ |
Other information
| Möbius function | $-1$ |
| Projective image | $C_3$ |