2 papers
math.GT2020
Surprising circles in Morse boundaries of right-angled Coxeter groups
Marius Graeber, Annette Karrer, Nir Lazarovich +1
We show that the Morse boundary of a right-angled Coxeter group may contain embedded circles that do not arise as the boundary of a Morse Fuchsian subgroup visible in the defining…
math.CO2018
Shadows in Coxeter groups
Marius Graeber, Petra Schwer
For a given in a Coxeter group the elements smaller than in Bruhat order can be seen as the end-alcoves of stammering galleries of type in the Coxeter complex $…