activity
20152025
most citedThe mapping class group of a nonorientable surface is quasi-isometrically embedded in the mapping class group of the orientation double cover

1 citations · 3 across the 11 of their papers we have counts for

collaborators

12 papers

math.GT2025

The bicorn curves on closed surfaces

Takuya Katayama, Erika Kuno

This paper focuses on using the theory of bicorn curves in the context of closed surfaces to understand hyperbolic phenomena of the curve graphs of those surfaces. We prove that th…

math.GT2023★ 1 cited

Automorphisms of fine curve graphs for nonorientable surfaces

Mitsuaki Kimura, Erika Kuno

The fine curve graph of a surface was introduced by Bowden, Hensel, and Webb as a graph consisting of essential simple closed curves on the surface. Long, Margalit, Pham, Verberne,…

math.GT2022

On virtual embeddings of braid groups into mapping class groups of surfaces

Takuya Katayama, Erika Kuno

In this article, we give a necessary and sufficient condition for embedding a finite index subgroup of Artin's braid group into the mapping class group of a connected orientable su…

math.GT2021

Quasimorphisms on nonorientable surface diffeomorphism groups

Mitsuaki Kimura, Erika Kuno

Bowden, Hensel, and Webb constructed infinitely many quasimorphisms on the diffeomorphism groups of orientable surfaces. In this paper, we extend their result to nonorientable surf…

math.GT2021

Uniform hyperbolicity of nonseparating curve graphs of nonorientable surfaces

Erika Kuno

Let be a connected finite type nonorientable surface with or without boundary components and punctures. We prove that the graph of nonseparating curves of is connected and…

math.GT2021

Right-angled Artin groups and curve graphs of nonorientable surfaces

Takuya Katayama, Erika Kuno

Let be a closed nonorientable surface with or without marked points. In this paper we prove that, for every finite full subgraph of , the rig…

math.GT2021★ 1 cited

The mapping class group of a nonorientable surface is quasi-isometrically embedded in the mapping class group of the orientation double cover

Takuya Katayama, Erika Kuno

Let be a connected nonorientable surface with or without boundary and punctures, and be the orientation double covering. It has previously been proved…

math.GT2018

The RAAGs on the complement graphs of path graphs in mapping class groups

Takuya Katayama, Erika Kuno

In this article, we determine the function such that the right-angled Artin group is embedded in the mapping class group if and…

math.GT2016

A lower bound of the distortion of the Torelli group in the mapping class group with boundary components

Erika Kuno, Genki Omori

We prove that each Torelli group of an orientable surface with any number of boundary components is at least exponentially distorted in the mapping class group by using Broaddus-Fa…

math.GT2016

Abelian subgroups of the mapping class groups for non-orientable surfaces

Erika Kuno

Birman-Lubotzky-McCarthy proved that any abelian subgroup of the mapping class groups for orientable surfaces is finitely generated. We apply Birman-Lubotzky-McCarthy's arguments t…

math.GT2015★ 1 cited

Right-angled Artin groups on finite subgraphs of disk graphs

Erika Kuno

Koberda proved that if a graph is a full subgraph of a curve graph of an orientable surface , then the right-angled Artin group on is a subgroup…

math.GT2015

Uniform hyperbolicity for curve graphs of non-orientable surfaces

Erika Kuno

Hensel-Przytycki-Webb proved that all curve graphs of orientable surfaces are 17-hyperbolic. In this paper, we show that curve graphs of non-orientable surfaces are 17-hyperbolic b…