T. Koberda

activity

20062026

most citedEmbedability between right-angled Artin groups

103 citations · 264 across the 55 of their papers we have counts for

collaborators

Showing 2021 · math.GRShow all

4 papers · 2 filters

math.GR2021

Structure and regularity of group actions on one-manifolds

Sang-hyun Kim, Thomas Koberda

In this monograph, we give an account of the relationship between the algebraic structure of finitely generated and countable groups and the regularity with which they act on manif…

math.GR2021

Geometry and combinatorics via right-angled Artin groups

Thomas Koberda

We survey the relationship between the combinatorics and geometry of graphs and the algebraic structure of right-angled Artin groups. We concentrate on the defining graph of the ri…

math.GR2021

Virtual critical regularity of mapping class group actions on the circle

Sang-hyun Kim, Thomas Koberda, Cristóbal Rivas

We show that if $G_{1}$ and $G_{2}$ are non-solvable groups, then no $C^{1, τ}$ action of $(G_{1} \times G_{2}) * Z$ on $S^{1}$ is faithful for $τ > 0$ . As a corollary, if $S$ is an orien…

math.GR2021

Hamiltonicity via cohomology of right-angled Artin groups

Ramón Flores, Delaram Kahrobaei, Thomas Koberda

Let $Γ$ be a finite graph and let $A (Γ)$ be the corresponding right-angled Artin group. We characterize the Hamiltonicity of $Γ$ via the structure of the cohomology algebra of $A(Γ…