Absolute flatness and amalgams in pomonoids
We define a tensor product for partially ordered sets acted on by a partially ordered monoid and study the related property of absolute flatness. As a by-product we show that a partially ordered commutative group is a strong amalgamation base in the category of partially ordered commutative monoids. This result originally due to Schreier in the case of groups has been generalized to include the case of monoids by Hall and Howie.
tensor product for partially ordered sets
scientific article; zbMATH DE number 3929074