Dominions, zigzags and epimorphisms for partially ordered semigroups
Keywords: posemigroup, pomonoid, dominion, zigzag, absolutely closed, epimorphism
AbstractWe prove an analogue of Isbell's celebrated zigzag theorem for partially ordered semigroups. This theorem provides a useful description of dominions which we employ to describe absolute closedness of posemigroups and epimorphisms in varieties of absolutely closed posemigroups.
Download data is not yet available.