Halbgruppen mit ausschließlich reesschen Linkskongruenzen.
Half-automorphisms of transformation semigroups
Hereditary and semi-hereditary monoids.
Hereditary radicals and 0-bands of semigroups.
HNN extensions of semigroups.
Hogan's construction of bisimple semigroups with .idempotents dually well-ordered.
Homogeneous quotients of semigroups.
Homomorphisms of free contents.
Homomorphisms of semilattices of semigroups.
Hyperarchimedische Teilbarkeitshalbgruppen