Torsion Free Subgroups of Fuchsian Groups and Tessalations of Surfaces.

A.L. Edmonds; J.H. Ewing; R. Kulkarni

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Displaying similar documents to “Torsion Free Subgroups of Fuchsian Groups and Tessalations of Surfaces.”

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The nonseparability of simply presented mixed groups

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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.