various types of injectivity in the categories of krasner (m; n)-ary hypermodules

In this paper, we study the concepts of injectivity in the categories of krasner (m; n)- hypermodules over a krasner (m; n)- hyperring to generalize the injective modules over a ring. as the main result, we introduce the concepts of normal baerian injectivity and baerian injectivity as the versions of baer’s criterion in the categories of krasner (m; n)- hypermodules. finally we find the relation between fundamental functor and normal injective (m; n)-hypermodules