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20182026
most citedLattices in a product of trees, hierarchically hyperbolic groups, and virtual torsion-freeness

9 citations · 53 across the 22 of their papers we have counts for

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Showing 2026 · math.GRShow all

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math.GR2026

Outer automorphisms of HNN extensions of abelian groups

Naomi Andrew, Sam Hughes, Motiejus Valiunas

Let be a commensurating HNN extension of a finitely generated free abelian group. We characterise when is finitely generated and derive structural information…

math.GR2026

Spherical and affine Artin groups, finite quotients, and the isomorphism problem

Sam Hughes, Thomas Ng, Kaitlin Ragosta +2

We compute the smallest non-abelian quotients of spherical and affine Artin groups. Usually, these are isomorphic to the smallest non-abelian quotients of the corresponding Coxeter…