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On Direct Sums of Countable Groups and Generalizations

Paul Hill and Charles Megibben

Chapter [11] in Études sur les Groupes abéliens / Studies on Abelian Groups, 1968, pp 183-206 from Springer

Abstract: Abstract In 1933 Ulm [30] published his paper vhich classified countable primary groups. The original proof of Ulm’s -theorem vas rather complicated, but Zippin [32] immediately improved not only the proof but the theorem itself.

Keywords: Abelian Group; Cyclic Group; Direct Summand; Primary Group; Countable Group (search for similar items in EconPapers)
Date: 1968
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DOI: 10.1007/978-3-642-46146-0_11

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