Generalized dihedral group
= Generalized dihedral group
{wiki}
For an abelian group $A$, the generalized dihedral group is the semidirect product $A\rtimes C_2$ in which the nonidentity element of $C_2$ acts on $A$ by inversion.
= Generalized dihedral group
{wiki}
For an abelian group $A$, the generalized dihedral group is the semidirect product $A\rtimes C_2$ in which the nonidentity element of $C_2$ acts on $A$ by inversion.