Classification of Quaternionic Projective Transformations by Equicontinuity Regions

Fuente: arXiv
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Hauptverfasser: Dutta, Sandipan, Gongopadhyay, Krishnendu, Mondal, Rahul
Format: Preprint
Veröffentlicht: 2025
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author Dutta, Sandipan
Gongopadhyay, Krishnendu
Mondal, Rahul
author_facet Dutta, Sandipan
Gongopadhyay, Krishnendu
Mondal, Rahul
contents We describe the equicontinuity regions of cyclic subgroups of the quaternionic projective linear group $\mathrm{PSL}(n+1,\mathbb{H})$. We show that these regions depend solely on the dynamical type of the generator $g$, i.e. whether $g$ is elliptic, parabolic, loxodromic or loxoparabolic. This yields an analytic interpretation of the dynamical classification of the elements. In particular, elliptic cyclic groups act equicontinuously on all of the quaternionic projective space, while for the parabolic, loxodromic and loxoparabolic elements the equicontinuity region is determined by explicit quaternionic projective subspaces arising from the generator's Jordan form.
format Preprint
id arxiv_https___arxiv_org_abs_2511_20053
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Classification of Quaternionic Projective Transformations by Equicontinuity Regions
Dutta, Sandipan
Gongopadhyay, Krishnendu
Mondal, Rahul
Group Theory
General Topology
20H10 (Primary), 15B33, 22E40 (Secondary)
We describe the equicontinuity regions of cyclic subgroups of the quaternionic projective linear group $\mathrm{PSL}(n+1,\mathbb{H})$. We show that these regions depend solely on the dynamical type of the generator $g$, i.e. whether $g$ is elliptic, parabolic, loxodromic or loxoparabolic. This yields an analytic interpretation of the dynamical classification of the elements. In particular, elliptic cyclic groups act equicontinuously on all of the quaternionic projective space, while for the parabolic, loxodromic and loxoparabolic elements the equicontinuity region is determined by explicit quaternionic projective subspaces arising from the generator's Jordan form.
title Classification of Quaternionic Projective Transformations by Equicontinuity Regions
topic Group Theory
General Topology
20H10 (Primary), 15B33, 22E40 (Secondary)
url https://arxiv.org/abs/2511.20053