Generation of polycyclic groups

Martin Kassabov; Nikolay Nikolov

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arXiv · 0711.3440

Generation of polycyclic groups

Martin Kassabov·Nikolay Nikolov

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Abstract

In this note we give an alternative proof of a theorem of Linnell and Warhurst that the number of generators d(G) of a polycyclic group G is at most d(\hat G), where d(\hat G) is the number of generators of the profinite completion of G. While not claiming anything new we believe that our argument is much simpler that the original one. Moreover our result gives some sufficient condition when d(G)=d(\hat G) which can be verified quite easily in the case when G is virtually abelian.

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Martin Kassabov, Nikolay Nikolov. 2008-03-27. Generation of polycyclic groups. https://arxiv.org/abs/0711.3440

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