Maximal torsion-free subgroups of certain lattices of hyperbolic buildings and Davis complexes

W Norledge, A Thomas, A Vdovina - Geometriae Dedicata, 2018 - Springer
We give an explicit construction of a maximal torsion-free finite-index subgroup of a certain
type of Coxeter group. The subgroup is constructed as the fundamental group of a finite and …

On regular CAT (0) cube complexes

N Lazarovich - arXiv preprint arXiv:1411.0178, 2014 - arxiv.org
We provide a necessary and sufficient condition on a finite flag simplicial complex, L, for
which there exists a unique CAT (0) cube complex whose vertex links are all isomorphic to …

On regular CAT (0) cube complexes and the simplicity of automorphism groups of rank-one CAT (0) cube complexes

N Lazarovich - Commentarii Mathematici Helvetici, 2018 - ems.press
We provide a necessary and sufficient condition on a finite flag simplicial complex L for
which there exists a unique CAT (0) cube complex whose vertex links are all isomorphic to …

Characterising vertex-star transitive and edge-star transitive graphs

M Giudici, CH Li, A Seress, A Thomas - Israel Journal of Mathematics, 2015 - Springer
Recent work of Lazarovich provides necessary and sufficient conditions on a graph L for
there to exist a unique simply-connected (k, L)-complex. The two conditions are symmetry …

Automorphism groups of combinatorial structures

A Thomas - 2016 MATRIX Annals, 2018 - Springer
Automorphism Groups of Combinatorial Structures Page 1 Automorphism Groups of
Combinatorial Structures Anne Thomas Abstract This is a series of lecture notes taken by …

Characterising star-transitive and st (edge)-transitive graphs

M Giudici, CH Li, A Seress, A Thomas - arXiv preprint arXiv:1301.1775, 2013 - arxiv.org
Recent work of Lazarovich provides necessary and sufficient conditions on a graph L for
there to exist a unique simply-connected (k, L)-complex. The two conditions are symmetry …

[PDF][PDF] Universal groups for right-angled buildings

AF Costa da Silva - 2017 - biblio.ugent.be
Four years of research are never possible to do alone. Therefore I cannot consider my
dissertation to be complete without expressing my enormous gratitude to all the people that …

A family of uniform lattices acting on a Davis complex with a non-discrete set of covolumes

D Sercombe - arXiv preprint arXiv:1511.09286, 2015 - arxiv.org
Let $(W, S) $ be a Coxeter system with Davis complex $\Sigma $. The polyhedral
automorphism group $ G $ of $\Sigma $ is a locally compact group under the compact-open …