On varieties of semilattice-ordered semigroups

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Authors

POLÁK Libor KUŘIL Martin

Year of publication 2005
Type Article in Periodical
Magazine / Source Semigroup Forum
MU Faculty or unit

Faculty of Science

Citation
Field General mathematics
Keywords variety; semilattice-ordered semigroup; admissible closusure operator
Description We iniciate here a systematic equational classification of semilattice-ordered semigroups. We start with various examples. Then we consider semilattice-ordered semigroups satisfying the identity x^r=x. Finally, we reduce the classification to finding certain operators on relatively free semigroups.
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