J. Schillewaert

activity

20092026

most citedOn exceptional Lie geometries

5 citations · 9 across the 22 of their papers we have counts for

collaborators

Showing 2020Show all

3 papers · 1 filter

math.CO2020★ 5 cited

On exceptional Lie geometries

Anneleen De Schepper, Jeroen Schillewaert, Hendrik Van Maldeghem +1

Parapolar spaces are point-line geometries introduced as a geometric approach to (exceptional) algebraic groups. We characterize a wide class of Lie geometries as parapolar spaces…

math.GR2020

Constructing highly regular expanders from hyperbolic Coxeter groups

Marston Conder, Alexander Lubotzky, Jeroen Schillewaert +1

A graph $X$ is defined inductively to be $(a_{0}, \dots, a_{n - 1})$ -regular if $X$ is $a_{0}$ -regular and for every vertex $v$ of $X$ , the sphere of radius $1$ around $v$ is an $(a_1,\dot…

math.GR2020★ 1 cited

Fixed points for group actions on 2-dimensional affine buildings

Jeroen Schillewaert, Koen Struyve, Anne Thomas

We prove a local-to-global result for fixed points of groups acting on affine buildings (possibly non-discrete) of types $A ~_{2}$ or $C ~_{2}$ . In the discrete case, our t…