A note on isomorphism theorems for semigroups of order-preserving transformations with restricted range

Abstract

Finding necessary and sufficient conditions for isomorphism between two semigroups of order-preserving transformations over an infinite domain with restricted range was an open problem. In this paper, we show a proof strategy to answer that question. © 2015 Phichet Jitjankarn and Thitarie Rungratgasame.