Showing math.GRShow all
2 papers · 1 filter
math.GR2023
Basic Non-Archimedean Jørgensen Theory
Matthew Conder, Harris Pok Hei Leung, Jeroen Schillewaert
We prove a non-archimedean analogue of Jørgensen's inequality, and use it to deduce several algebraic convergence results. As an application we show that every dense subgroup of $\…
math.GR2022
Distances between fixed-point sets in 2-dimensional Euclidean buildings are realised
Harris Leung, Jeroen Schillewaert, Anne Thomas
We prove that if two finitely generated groups act on a metrically complete 2-dimensional Euclidean building, then the distance between their fixed-point sets is realised. Our proo…