ACTA issues

Partially free commutative semigroups

Pierre Antoine Grillet

Acta Sci. Math. (Szeged) 61:1-4(1995), 155-169

Abstract. Partially free semigroups are a class of finite group-free commutative semigroups. This article gives the definition and first properties of these semigroups, and computes their cohomology.

AMS Subject Classification (1991): 20M14, 20M50

Received October 5, 1994. (Registered under 5677/2009.)