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Mixed Groups of Finite Nilstufe
Published online by Cambridge University Press: 20 November 2018
Abstract
This paper constructs a class of examples to show that for torsion-free groups H with finite nilstufe v(H) = n < ∞ there can be divisible torsion groups D with v(H ⊕ D) - n + k for all k ≤ n + 1. This answers a question of Feigelstock. The construction is based on a proposition which bounds v(H ⊕ D) in terms of v(H) and rank (D).
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- Copyright © Canadian Mathematical Society 1987
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