On the divisible parts of quotient groups
classification
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keywords
divisiblecountablepartquotientabelianalgebraicappliedcardinal
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Techniques of combinatorial set theory are applied to the following algebraic problem. Suppose G is an abelian group such that, for all countable subgroups C, the divisible part of the quotient G/C is countable. What can one conclude about the size of the divisible part of G/K when the cardinality of the subgroup K is a given uncountable cardinal?
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