20Fxx Special aspects of infinite or finite groups

• 20F05 Generators, relations, and presentations
• 20F06 Cancellation theory; application of van Kampen diagrams, See also {57M05}
• 20F10 Word problems, other decision problems, connections with logic and automata, See also {03B25, 03D05, 03D40, 06B25, 08A50, 68Qxx}
• 20F12 Commutator calculus
• 20F14 Derived series, central series, and generalizations
• 20F16 Solvable groups, supersolvable groups
• 20F17 Formations of groups, Fitting classes, See also {20D10}
• 20F18 Nilpotent groups
• 20F19 Generalizations of solvable and nilpotent groups
• 20F22 Other classes of groups defined by subgroup chains
• 20F24 FC-groups and their generalizations
• 20F28 Automorphism groups of groups, See also {20E36}
• 20F29 Representations of groups as automorphism groups of algebraic systems
• 20F32 Geometric group theory, See also {05C25, 20Exx, 20Gxx}
• 20F34 Fundamental groups and their automorphisms, See Also {57M05, 57Sxx, 22E40}
• 20F36 Braid groups; Artin groups
• 20F38 Other groups related to topology or analysis
• 20F40 Associated Lie structures
• 20F45 Engel conditions
• 20F50 Periodic groups; locally finite groups
• 20F55 Coxeter groups, See also {22E40}
• 20F60 Ordered groups See mainly{06F15}
• 20F99 None of the above but in this section