activity
20152024
most citedOn groups whose actions on finite-dimensional CAT(0) spaces have global fixed points

6 citations · 10 across the 8 of their papers we have counts for

collaborators

8 papers

math.GR2024

On a family of finitely generated simple groups of homeomorphisms of the circle

Motoko Kato

The notion of chain groups of homeomorphisms of was introduced by Kim, Koberda and Lodha as a generalization of Thompson's group . Subsequently, an -version of…

math.GR2024

Acylindrical hyperbolicity and the centers of Artin groups that are not free of infinity

Motoko Kato, Shin-ichi Oguni

Charney and Morris-Wright showed acylindrical hyperbolicity of Artin groups of infinite type associated with graphs that are not joins, by studying clique-cube complexes and the ac…

math.GT2022

Acylindrical hyperbolicity of Artin groups associated with graphs that are not cones

Motoko Kato, Shin-ichi Oguni

Charney and Morris-Wright showed acylindrical hyperbolicity of Artin groups of infinite type associated with graphs that are not joins, by studying clique-cube complexes and action…

math.GR2021★ 1 cited

Semi-simple actions of the Higman-Thompson groups on finite-dimensional CAT(0) spaces

Motoko Kato

In this paper, we study isometric actions on finite-dimensional CAT(0) spaces for the Higman-Thompson groups , which are generalizations of Thompson's group . It is known t…

math.GR2020

Acylindrical hyperbolicity of Artin-Tits groups associated to triangle-free graphs and cones over square-free bipartite graphs

Motoko Kato, Shin-ichi Oguni

It is conjectured that the central quotient of every irreducible Artin group is either virtually cyclic or acylindrically hyperbolic. We prove this conjecture for Artin groups asso…

math.GR2018★ 6 cited

On groups whose actions on finite-dimensional CAT(0) spaces have global fixed points

Motoko Kato

We give a criterion for group elements to have fixed points with respect to a semi-simple action on a complete CAT(0) space of finite topological dimension. As an application, we s…

math.GR2016★ 1 cited

Embeddings of right-angled Artin groups into higher dimensional Thompson groups

Motoko Kato

In this paper, we construct embeddings of right-angled Artin groups into higher dimensional Thompson groups. In particular, we embed every right-angled Artin groups into n-dimensio…

math.GR2015★ 2 cited

Higher dimensional Thompson groups have Serre's property FA

Motoko Kato

The Thompson group V is a subgroup of the homeomorphism group of the Cantor set. Brin defined higher dimensional Thompson groups nV as generalizations of V. We prove that nV has Se…