20-00 General reference works (handbooks, dictionaries, bibliographies, etc.) pertaining to group theory 26
20B25 Finite automorphism groups of algebraic, geometric, or combinatorial structures [See also 05Bxx, 12F10, 20G40, 20H30, 51-XX] 3642
20Cxx Representation theory of groups {For representation rings and Burnside rings, see also 19A22} 22300
20C07 Group rings of infinite groups and their modules (group-theoretic aspects) [See also 16S34] 1938
20D10 Finite solvable groups, theory of formations, Schunck classes, Fitting classes, \(\pi\)-length, ranks [See also 20F17] 6244
20E06 Free products of groups, free products with amalgamation, Higman-Neumann-Neumann extensions, and generalizations 2826
20F10 Word problems, other decision problems, connections with logic and automata (group-theoretic aspects) [See also 03B25, 03D05, 03D40, 06B25, 08A50, 20M05, 68Q70] 3038
20F34 Fundamental groups and their automorphisms (group-theoretic aspects) [See also 57M05, 57Sxx] 1023
20Gxx Linear algebraic groups and related topics {For arithmetic theory, see 11E57, 11H56; for geometric theory, see 14Lxx, 22Exx; for other methods in representation theory, see 15A30, 22E45, 22E46, 22E47, 22E50, 22E55} 18147
20G42 Quantum groups (quantized function algebras) and their representations [See also 16T20, 17B37, 81R50] 987
20H05 Unimodular groups, congruence subgroups (group-theoretic aspects) [See also 11F06, 19B37, 22E40, 51F20] 951
20H10 Fuchsian groups and their generalizations (group-theoretic aspects) [See also 11F06, 22E40, 30F35, 32Nxx] 2093
20H15 Other geometric groups, including crystallographic groups [See also 51-XX, especially 51F15, and 82D25] 2317
20Lxx Groupoids (i.e. small categories in which all morphisms are isomorphisms) {For sets with a single binary operation, see 20N02; for topological groupoids, see 22A22, 58H05} 1050
20L05 Groupoids (i.e. small categories in which all morphisms are isomorphisms) {For sets with a single binary operation, see 20N02; for topological groupoids, see 22A22, 58H05} 1020
20N02 Sets with a single binary operation (groupoids) {For groupoids in connection with category theory, see 20L05; for topological groupoids, see 22A22, 58H05} 1063