… semigroup that is larger than any aperiodic semigroup known to date. We then present even
larger aperiodic semigroups, … and semigroups semiconstant. We examine semiconstant tree …

… examples of semigroups built from the character table of Abelian Groups that have an aperiodic
flows. … We now show that Ap∗Gp is the unique largest pseudovariety such that each of its …

… semigroups to show that these κ-semigroups are in fact the free aperiodic semigroups …
We can now summarize the basic properties of the Burnside semigroups of sufficiently large …

… motivated by the open question: “Is the complexity of a finite semigroup S decidable?” …
aperiodic semigroup and give an explicit relation. The central idea of the proof is that an aperiodic …

… We characterize aperiodic relational morphisms as those that … ’s results on joins of aperiodic
semigroups and groups. Also, … ’s theorem on the complexity of semigroups with at most $2$ …

… semigroup, a torsion class of a periodic semigroup S, need not be subsemigroup. Even more,
an example of a periodic semigroup … The investigations of semigroup graded rings is large …

… This connection has lead to a large and deep literature on … aperiodic semigroup S with
commuting idempotents and prove that it does not divide any finite aperiodic inverse semigroup. …

… a finitely generated nil-semigroup which cannot be imbedded in a nilalgebra. In Sec. 2 we
describe a scheme permitting the construction of an infinite series of such semigroups. In Sec. …

… is the largest class of semigroups closed under … semigroups, orthodox semigroups, etc.).
In Section II we show that 8: S + T is an aperiodic morphism iff D(6) is an aperiodic semigroup. …

… the pseudovariety A of all finite aperiodic, or group-free, semigroups. These are the finite …
finite aperiodic semigroups do not separate an ω-term from its expansions of sufficiently large …