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arXiv · 2610.40680

Centroids Of Partially Commutative Two-step Nilpotent Groups

Ivan M. Buchinskiy
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Abstract

In this paper, we describe the centroid (according to S. Lioutikov and A. Myasnikov) of an arbitrary finitely generated graph two-step nilpotent Hall exponential group over a binomial domain whose commutativity graph has no central vertices. Based on this description, we prove that if the non-commutativity graph of such a group has exactly one connected component and the group is non-Abelian, then the group is rigid.

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Ivan M. Buchinskiy. 2026-10-26. Centroids Of Partially Commutative Two-step Nilpotent Groups. https://arxiv.org/abs/2610.40680

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