Safety- and liveness-properties in propositional temporal logic: characterizations and decidability
Sandwich sets and partial order.
SAP compactifications of N-fold and infinite semidirect products.
Schützenberger groups and Chebyshev polynomials.
Schützenberger Groups of ...-Classes Containing Odd Degree Polynomials.
Schützenberger groups of ...-classes in the semigroup of all binary relations on a set.
Schützenberger groups of some even degree polynomials in S(R).
Schwache Teilbarkeitshalbgruppen.
Second centralizers of partial transformations
Second centralizers of partial transformations on a finite set are determined. In particular, it is shown that the second centralizer of any partial transformation consists of partial transformations that are locally powers of .
Selfdistributive groupoids. Part D1: Left distributive semigroups
Semi-automorphisms of transformation semigroups
Semi-Characters of the Multiplicative Semigroup of Integers Modulo
Semidirect products and wreath products of strongly -inverse monoids.
Semidirectly closed pseudovarieties of locally trivial semigroups.
Semigroup algebras of finite representation type.
Semigroup representations of commutative idempotent Abelian groupoids
Semigroup representations of medial groupoids
Semigroup ring construction of Frobenius extensions.
Semigroup theoretical approach to normal ideals
Semigroup varieties of inflations of unions of groups.