Properties

Label 3840.ft.240.FT
Order $ 2^{4} $
Index $ 2^{4} \cdot 3 \cdot 5 $
Normal No

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Subgroup ($H$) information

Description:$C_2^2:C_4$
Order: \(16\)\(\medspace = 2^{4} \)
Index: \(240\)\(\medspace = 2^{4} \cdot 3 \cdot 5 \)
Exponent: \(4\)\(\medspace = 2^{2} \)
Generators: $\langle(12,13)(14,15), (6,7)(10,11)(12,13)(14,15), (6,7)(10,11)(14,15), (6,10,7,11)(12,15)(13,14)\rangle$ Copy content Toggle raw display
Nilpotency class: $2$
Derived length: $2$

The subgroup is nonabelian, a $p$-group (hence nilpotent, solvable, supersolvable, monomial, elementary, and hyperelementary), and metabelian.

Ambient group ($G$) information

Description: $C_2\times \GL(2,\mathbb{Z}/4):F_5$
Order: \(3840\)\(\medspace = 2^{8} \cdot 3 \cdot 5 \)
Exponent: \(60\)\(\medspace = 2^{2} \cdot 3 \cdot 5 \)
Derived length:$3$

The ambient group is nonabelian and solvable. Whether it is monomial has not been computed.

Automorphism information

While the subgroup $H$ is not characteristic, the stabilizer $S$ of $H$ in the automorphism group $\operatorname{Aut}(G)$ of the ambient group acts on $H$, yielding a homomorphism $\operatorname{res} : S \to \operatorname{Aut}(H)$. The image of $\operatorname{res}$ on the inner automorphisms $\operatorname{Inn}(G) \cap S$ is the Weyl group $W = N_G(H) / Z_G(H)$.

$\operatorname{Aut}(G)$$(C_5\times A_4).C_2^4.C_2^6$
$\operatorname{Aut}(H)$ $C_2^2\wr C_2$, of order \(32\)\(\medspace = 2^{5} \)
$\operatorname{res}(S)$$C_2^4$, of order \(16\)\(\medspace = 2^{4} \)
$\card{\operatorname{ker}(\operatorname{res})}$\(640\)\(\medspace = 2^{7} \cdot 5 \)
$W$$C_2^3$, of order \(8\)\(\medspace = 2^{3} \)

Related subgroups

Centralizer:$C_2^3\times F_5$
Normalizer:$D_{10}.D_4^2$
Normal closure:$C_2^2.S_4$
Core:$C_2$
Minimal over-subgroups:$C_2^2:C_{20}$$C_2^3:C_4$$C_2^2\wr C_2$$C_2^3:C_4$$C_2^3:C_4$$C_2^2\wr C_2$
Maximal under-subgroups:$C_2^3$$C_2\times C_4$$C_2\times C_4$

Other information

Number of subgroups in this autjugacy class$6$
Number of conjugacy classes in this autjugacy class$2$
Möbius function not computed
Projective image$C_2^2\times F_5\times S_4$