Search and Browse the MSC 2000

20-XX Group theory and generalizations → ZMATH

20Mxx Semigroups → ZMATH

20M05 Free semigroups, generators and relations, word problems → ZMATH

20M07 Varieties of semigroups → ZMATH

20M10 General structure theory → ZMATH

20M11 Radical theory → ZMATH

20M12 Ideal theory → ZMATH

20M14 Commutative semigroups → ZMATH

20M15 Mappings of semigroups → ZMATH

20M17 Regular semigroups → ZMATH

20M18 Inverse semigroups → ZMATH

20M19 Orthodox semigroups → ZMATH

20M20 Semigroups of transformations, etc. [See also 47D03, 47H20, 54H15] → ZMATH

20M25 Semigroup rings, multiplicative semigroups of rings [See also 16S36, 16Y60] → ZMATH

20M30 Representation of semigroups; actions of semigroups on sets → ZMATH

20M35 Semigroups in automata theory, linguistics, etc. [See also 03D05, 68Q70, 68T50] → ZMATH

20M50 Connections of semigroups with homological algebra and category theory → ZMATH

20M99 None of the above, but in this section → ZMATH