On a mechanism of defining morphisms in concrete categories
On categories determined by poset- and set-valued functors
On categories into which each concrete category can be embedded
On closed lattices
On descriptive classification of set-functors. I.
On descriptive classification of set-functors. II.
On extensions of full embeddings and binding categories
On reflexive subobject lattices and reflexive endomorphism algebras
In this paper we study the reflexive subobject lattices and reflexive endomorphism algebras in a concrete category. For the category Set of sets and mappings, a complete characterization for both reflexive subobject lattices and reflexive endomorphism algebras is obtained. Some partial results are also proved for the category of abelian groups.