Browsing Magister Scientiae - MSc (Mathematics and Applied Mathematics) by Subject "abelian groups"
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Variances of purity within torsion-free Abelian groups
(University of the Western Cape, 1994)In 1921, Prufer introduced the concept of a pure subgroup of an abelian group. This concept, which is applicable only to abelian groups, proved to be a very useful one. Subsequently, this concept has sparked off numerous ...