Displaying similar documents to “Is Whaples' theorem a group theoretical result?”

The nonseparability of simply presented mixed groups

Paul Hill, Charles K. Megibben (1998)

Commentationes Mathematicae Universitatis Carolinae

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It is demonstrated that an isotype subgroup of a simply presented abelian group can be simply presented without being a separable subgroup. In particular, the conjecture based on a variety of special cases that Warfield groups are absolutely separable is disproved.