Results 221 to 224 of about 14,642 (224)

Decompositions and Pseudo-orders of Ordered Semigroups

Semigroup Forum, 2004
Let \((S,\cdot,\leq)\) be a partially ordered semigroup. A semilattice congruence \(\eta\) on \((S,\cdot)\) is called ``natural ordered'' if \(a\leq b\) \((a,b\in S)\) implies \(ab \eta a\). Following \textit{N. Kahayopulu} and \textit{M. Tsingelis} [Semigroup Forum 50, 392--398 (1995; Zbl 0828.06010)] a binary relation \(\omega\) on \(S\) is called ...
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On An Ordered Semigroup [PDF]

Journal of the London Mathematical Society, 1953
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Ordered semigroups which are not o-epimorphic images of ordered free semigroups [PDF]

Siberian Mathematical Journal, 1970
E. Ya. Gabovich, G. I. Rubanovich, O. A. Ivanova   +2 more
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Extension of partial orders on a semigroup to semigroups of quotients

Acta Mathematica Academiae Scientiarum Hungaricae, 1970
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