Absolute Ideals of Almost Completely Decomposable Abelian Groups

Ekaterina Kompantseva, Askar Tuganbaev

We consider the class ${\mathcal{A}}_0$ of Abelian block-rigid $CRQ$-groups of ring type. A subgroup $A$ of an Abelian group $G$ is called an \textsf{absolute ideal} of the group $G$…