Refail AlizadeSurajo Ibrahim Isah2025-10-06201702194988, 179368290219-49881793-682910.1142/S0219498817500487https://www.scopus.com/inward/record.uri?eid=2-s2.0-84962241894&doi=10.1142%2FS0219498817500487&partnerID=40&md5=a603e4350d34852667894c1e46bb2465https://gcris.yasar.edu.tr/handle/123456789/9699In this paper we describe completely the -singular subgroup of an abelian group and a -nonsingular abelian group in terms of the basic subgroups of its p-components and the quotient group by the torsion part. We also prove that a pure subgroup and a quotient group by a pure subgroup of a -nonsingular abelian group are -nonsingular and give a condition under which a pure extension of a -nonsingular abelian group by a -nonsingular group is -nonsingular. © 2017 Elsevier B.V. All rights reserved.English-nonsingular Abelian Group, -singular Subgroup, Basic Subgroup, Pure SubgroupArticle