103 citations · 264 across the 55 of their papers we have counts for
3 papers · 2 filters
Direct products, overlapping actions, and critical regularity
Sang-hyun Kim, Thomas Koberda, Cristóbal Rivas
We address the problem of computing the critical regularity of groups of homeomorphisms of the interval. Our main result is that if and are two non-solvable groups then a f…
Expanders and right-angled Artin groups
Ramón Flores, Delaram Kahrobaei, Thomas Koberda
The purpose of this article is to give a characterization of families of expander graphs via right-angled Artin groups. We prove that a sequence of simplicial graphs $\{Γ_i\}_{i\in…
An algebraic characterization of --colorability
Ramón Flores, Delaram Kahrobaei, Thomas Koberda
We characterize --colorability of a simplicial graph via the intrinsic algebraic structure of the associated right-angled Artin group. As a consequence, we show that a certain p…