Genus of a pullback

Date
2021
Authors
Tonisi, Thandile
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Abstract
Let Q be a finitely generated nilpotent group. The Mislin genus G (Q) is defined to be the set of isomorphism classes of finitely generated nilpotent groups R such that for every prime p, the p-localizations Rp and Qp are isomorphic. If the group Q has a finite commutator sub group, the genus admits an abelian group structure. In this work, we study the Mislin genus of nilpotent groups through pullbacks. For a relatively prime pair of natural numbers (n, u), let Q = hx, y | x n = 1, yxy−1 = x u i, where Q is a pullback. We compute the genus G (Q) and we investigate the relationship between the genera of these nilpo tent groups.
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A dissertation submitted in fulfilment of the requirements for the degree of Master of Science (Mathematics) to the Faculty of Science, School of Mathematics, University of the Witwatersrand, Johannesburg, 2021
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