Self--injective abelian groups
Self-pseudoprojective completely decomposable Abelian groups.
Self-small products of abelian groups
Let and be two abelian groups. The group is called -small if the covariant functor commutes with all direct sums and is self-small provided it is -small. The paper characterizes self-small products applying developed closure properties of the classes of relatively small groups. As a consequence, self-small products of finitely generated abelian groups are described.
Sous-groupes fonctoriels et relativisations
Splitting of mixed abelian groups.