Fee Local Semigroup Constructions.
Fields of tangent sets and Hofmann cones.
Filters and semigroup properties.
Finite dimensional continuous representations of compact regular semigroups.
Finite point compactifications of (N, +).
Free groups and semigroups in ßN.
Free groups in ßN which miss the minimal ideal.
Free groups of semigroups in semi-simple Lie groups.
Free topological inverse semigroups.
From a topological theory of semigroup to a geometric one.