Cocyclic morphism sets depending on a morphism in the category of pairs
Bull. Korean Math. Soc.
Published online June 10, 2019
Jiyean Kim and Kee Young Lee
Korea University
Abstract : In this paper, we apply the notion of cocyclic maps to the category of pairs proposed by Hilton and obtain more general concepts. We discuss the concept of cocyclic morphisms with respect to a morphism and find that it is a dual concept of cyclic morphisms with respect to a morphism and a generalization of the notion of cocyclic morphisms with respect to a map. Moreover, we investigate its basic properties including the preservation of
cocyclic properties by morphisms and find conditions for which the set of all homotopy classes of cocyclic morphisms with respect to a morphism will have a group structure.
Keywords : Cocyclic map, Cocyclic morphism, Category of pairs
MSC numbers : 55Q05, 55P30
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