Semigroups. Theory and Applications

Inhaltsverzeichnis

• Some congruences on regular semigroups.
• On pseudovarieties of monoids.
• Systems of equations over a finitely generated free monoid having an effectively findable equivalent finite subsystem.
• Minimal congruences and coextensions in semigroups.
• Endomorphism monoids of acts are wreath products of monoids with small categories.
• Free right h-Adequate semigroups.
• Group and semigroup theoretic considerations inspired by inverse problems of the additive number theory.
• Correspondences of semigroups.
• On universality of extensions.
• On additively or multiplicatively idempotent semirings and partial orders.
• Congruence semimodular varieties of semigroups.
• Decomposition of languages into disjunctive outfix codes.
• Some algorithms for semigroups and monoids presented by a single relation.
• Remarks on acts and the lattice of their torsion theories.
• Relativized star-free expressions, first-order logic, and a concatenation game.
• Semigroup extensions of partial groupoids.
• On groups having finite monadic church-rosser presentations.
• Automated theorem proving applied to the theory of semigroups.
• Subdirectly irreducible we-2 semigroups with globally idempotent core.
• Commutative monoid rings with krull dimension.
• Languages induced by certain homomorphisms of a free monoid.
• Infima in the power set of free semigroups.
• Update on the problems in „inverse semigroups“ by M. Peterich.
• Minimal clans: A class of ordered partial semigroups including boolean rings and lattice-ordered groups.
• Les systemes entiers d'equations sur un alphabet de 3 variables.
• A new interpretation of free orthodox and generalized inverse *-semigroups.
• Varieties of completely regular semigroups: Their injectives.
• Generalized semialgebras over semirings.