Twisted Conjugacy Growth of the Generalised Heisenberg Groups

Fuente: arXiv
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Main Author: Vandeputte, Lukas
Format: Preprint
Published: 2025
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author Vandeputte, Lukas
author_facet Vandeputte, Lukas
contents We determine the twisted conjugacy growth function for automorphisms on generalised Heisenberg groups. In particular we demonstrate for these groups that up to a natural equivalence this function is either given by $n^k$ or $n^k\ln(n)$ for some constant $k$. We give a precise description for which of these functions we obtain in terms of dimensions and ranks on the upper and lower central series. In particular we obtain that the twisted conjugacy growth is always bounded by the conjugacy growth.
format Preprint
id arxiv_https___arxiv_org_abs_2509_02231
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Twisted Conjugacy Growth of the Generalised Heisenberg Groups
Vandeputte, Lukas
Group Theory
20F65, 20E45, 20F18
We determine the twisted conjugacy growth function for automorphisms on generalised Heisenberg groups. In particular we demonstrate for these groups that up to a natural equivalence this function is either given by $n^k$ or $n^k\ln(n)$ for some constant $k$. We give a precise description for which of these functions we obtain in terms of dimensions and ranks on the upper and lower central series. In particular we obtain that the twisted conjugacy growth is always bounded by the conjugacy growth.
title Twisted Conjugacy Growth of the Generalised Heisenberg Groups
topic Group Theory
20F65, 20E45, 20F18
url https://arxiv.org/abs/2509.02231