20Exx Structure and classification of infinite or finite groups ( 0 Dok. )

• 20E05 Free nonabelian groups ( 0 Dok. )
• 20E06 Free products, free products with amalgamation, Higman-Neumann-Neumann extensions, and generalizations ( 0 Dok. )
• 20E07 Subgroup theorems ( 0 Dok. )
• 20E08 Groups acting on trees ( 0 Dok. )
• 20E10 Quasivarieties and varieties of groups ( 0 Dok. )
• 20E15 Chains and lattices of subgroups, subnormal subgroups, See also {20F22} ( 0 Dok. )
• 20E18 Limits, profinite groups ( 0 Dok. )
• 20E22 Extensions, wreath products, and other compositions, See also {20J05} ( 0 Dok. )
• 20E25 Local properties ( 0 Dok. )
• 20E26 Residual properties and generalizations ( 0 Dok. )
• 20E28 Maximal subgroups ( 0 Dok. )
• 20E32 Simple groups, See also {20D05} ( 0 Dok. )
• 20E34 General structure theorems ( 0 Dok. )
• 20E36 General theorems concerning automorphisms of groups ( 0 Dok. )
• 20E42 Groups with a $BN$-pair; buildings, See also {51E24} ( 0 Dok. )
• 20E99 None of the above but in this section ( 0 Dok. )