We consider the class of –modules where is an associative ring. Let be a module over a group ring where is a group and let be a set of all proper subgroups of such that if then belongs to . We study an –module such that , , , and is one of the classes: artinian –modules, minimax –modules, finite –modules. We consider the cases: 1) is a class of all artinian $\bf R\bf Rp$–adic integers; 2) is a class of all minimax –modules, is a ring of integers, G is a locally soluble group; 3) is a class of all finite –modules, is an associative ring. In these cases we prove that is isomorphic to a quasi–cyclic –group for some prime .

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