Tuesday, April 3, 14:00, 7.527
Xia Zhang (South China Normal University), On injective constructions for
We study injectivity of ordered algebras with respect to the class
of homomorphisms that are order-embeddings and one more class of morphisms.
We do this in the category where morphisms need not be homomorphisms, but
satisfy a condition which is weaker than operation-preservation.
In this setting the injective objects turn out to be precisely
sup-algebras. We also show how to construct injective hulls of ordered