Unitary posets and amalgamations of pomonoids
In 1927, Schreier proved that amalgams of groups are always embeddable in the category of groups. However, this is not true in the category of semigroups, as shown by Kimura. Subsequently, Howie initiated the study of semigroup amalgams by investigating when the embeddablity happens, and found that...
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University of Southampton
2014
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| Online Access: | https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.628696 |