20C07 2 20F24 2 Chernikov groups 20-00 1 20B07 1 20D10 1 20E07 1 20E15 1 20E25 1 20E26 1 20E28 1 20E34,20E36 1 20E45 1 20F14 1 20F16 1 20F18 1 20F19 1 20F22 1 20F50 1 CC – groups 1 Dietzmann classes 1 FC – groups 1 anti-\(\mathfrak{X}C\)-groups 1 finiteness conditions 1 generalized nilpotent groups 1 generalized soluble groups 1 groups with \(\mathfrak{X}\)-classes of conjugate subgroups 1 infinite groups 1