On Morita equivalence of partially ordered semigroups with local units
Lauri Tart · Acta et Commentationes Universitatis Tartuensis de Mathematica · 2011
We show that for two partially ordered semigroups S and T with common local units, there exists a unitary Morita context with surjective maps if and only if the categories of closed right S- and T-posets are equivalent.