Abstract:
It is proved that if G and V are abelian groups, sthen the group Ext(G,V) of all abelian extensions of the group V with the aid of the group G is extracted by the direct component in the group Opext(G,V) of all central extensions of V with the aid of G.
Citation:
A. I. Moskalenko, “On the splitting of groups of central group extensions”, Mat. Zametki, 6:2 (1969), 197–200; Math. Notes, 6:2 (1969), 575–576