28 citations · 58 across the 10 of their papers we have counts for
3 papers · 1 filter
A classification of generalized root systems
Michael Cuntz, Bernhard Mühlherr
Dimitrov and Fioresi introduced an object that they call a generalized root system. This is a finite set of vectors in a euclidean space satisfying certain compatibilities between…
On the Tits cone of a Weyl groupoid
Michael Cuntz, Bernhard Mühlherr, Christian J. Weigel
We translate the axioms of a Weyl groupoid with (not necessarily finite) root system in terms of arrangements. The result is a correspondence between Weyl groupoids permitting a ro…
The sphericity of the complex of non-degenerate subspaces
Alice Devillers, Ralf Köhl, Bernhard Muhlherr
We prove that the complex of proper non-trivial non-degenerate subspaces of a finite-dimensional vector space endowed with a non-degenerate sesquilinear form is homotopy equivalent…