20-XX |
|
|
Group theory and generalizations |
|
20Exx |
|
Structure and classification of infinite or finite groups |
|
|
20E05 |
Free nonabelian groups |
|
|
20E06 |
Free products of groups, free products with amalgamation, Higman-Neumann-Neumann extensions, and generalizations |
|
|
20E07 |
Subgroup theorems; subgroup growth |
|
|
20E08 |
Groups acting on trees [See also 20F65] |
|
|
20E10 |
Quasivarieties and varieties of groups |
|
|
20E15 |
Chains and lattices of subgroups, subnormal subgroups [See also 20F22] |
|
|
20E18 |
Limits, profinite groups |
|
|
20E22 |
Extensions, wreath products, and other compositions of groups [See also 20J05] |
|
|
20E25 |
Local properties of groups |
|
|
20E26 |
Residual properties and generalizations; residually finite groups |
|
|
20E28 |
Maximal subgroups |
|
|
20E32 |
Simple groups [See also 20D05] |
|
|
20E34 |
General structure theorems for groups |
|
|
20E36 |
Automorphisms of infinite groups {For automorphisms of finite groups, see 20D45} |
|
|
20E42 |
Groups with a $BN$-pair; buildings [See also 51E24] |
|
|
20E45 |
Conjugacy classes for groups |
|
|
20E99 |
None of the above, but in this section |