activity
20042026
most citedHomology and topological full groups of etale groupoids on totally disconnected spaces

100 citations · 364 across the 34 of their papers we have counts for

collaborators

34 papers

math.OA2026

HK and GL

Hiroki Matui

We study the HK conjecture and the gap-labelling problem for transformation groupoids associated with free actions of poly- groups on Cantor sets. The main tool is a comparison…

math.DS2021

Long exact sequences of homology groups of étale groupoids

Hiroki Matui

When a pair of étale groupoids and on totally disconnected spaces are related in some way, we discuss the difference of their homology groups. More spe…

math.OA2019★ 6 cited

Poly- group actions on Kirchberg algebras II

Masaki Izumi, Hiroki Matui

This is the second part of our serial work on the classification of poly- group actions on Kirchberg algebras. Based on technical results obtained in our previous work,…

math.OA2018★ 2 cited

Poly- group actions on Kirchberg algebras I

Masaki Izumi, Hiroki Matui

Toward the complete classification of poly- group actions on Kirchberg algebras, we prove several fundamental theorems that are used in the classification. In addition,…

math.OA2018

A weak homotopy equivalence type result related to Kirchberg algebras

Masaki Izumi, Hiroki Matui

We obtain a weak homotopy equivalence type result between two topological groups associated with a Kirchberg algebra: the unitary group of the continuous asymptotic centralizer and…

math.OA2016

Topological full groups of etale groupoids

Hiroki Matui

This is a survey of the recent development of the study of topological full groups of etale groupoids on the Cantor set. Etale groupoids arise from dynamical systems, e.g. actions…