Fundamental journal of mathematics and applications (Online), cilt.5, sa.1, ss.63-66, 2022 (Hakemli Dergi)
BCK-modules were introduced as an action of a BCK-algebra over an Abelian group. Homomorphisms of BCK-modules form an exact sequence which is called BCK-sequence. In this paper, we study homomorphisms of BCK-modules. We show that this homomorphisms have a module structure. Moreover, we show that sequences of Hom functors are BCK-sequences.