ON KERNEL OF ORDERED SEMIGROUPS - A CORRIGENDUM

Niovi Kehayopulu, Michael Tsingelis
2013 Communications of the Korean Mathematical Society  
According to the paper in [3], the kernel of an ordered semigroup S is a completely regular subsemigroup of S. In this note we show that the kernel of an ordered semigroup S is not a completely regular subsemigroup of S, in general.
doi:10.4134/ckms.2013.28.2.225 fatcat:xvon4vkhrfan3hq24bopqvt7jq