Plane Motion Groups and Virtual Poincaré Duality of Dimension Two.
Poincaré polynomials for unitary reflection groups.
Poznámka k tretej časti 18. Hilbertovho problému
Projective representations of reflection groups
Quasicrystallographic groups on Minkowski spaces.
Quotients of Infinite Reflection Groups.
Riemann and Klein surfaces with nodes viewed as quotients.
If G is a group of automorphisms that acts properly discontinuously on a Riemann or Klein surface X, then there exists a unique structure of Riemann or Klein surface on X/G such that the projection π: X → X/G is a morphism. The analogous result is not true when we deal with surfaces with nodes. In this paper we give a new definition of a group that acts properly discontinuously on a surface with nodes in order to obtain a similar theorem.
Simple and multiple antisymmetry colorings of rosettes
Simple and multiple antisymmetry point groups
Some Characterizations of Bruhat Ordering on a Coxeter Group and Determination of the Relative Möbius Function
Spiegelungsrelationen in den engeren orthogonalen Gruppen.
Stratification of the discriminant in Reflection groups.
Subgroup Lattices for Crystallographic Groups
Sur la théorie des invariants des groupes classiques
On donne une forme géométrique à la théorie classique des invariants pour le groupe spécial linéaire, le groupe orthogonal et le groupe symplectique. On démontre aussi un critère de normalité pour les variétés algébriques affines où opère un groupe algébrique réductif connexe.
Sur les valeurs propres de la transformation de Coxeter.
The bounded model for hyperbolic 3-space and a quaternionic uniformization theorem.
The Cayley graphs of and the limits of vertex-primitive graphs of -type.
The characters of the hecatonicosahedroidal group.
The classification of space groups.
The length of a unitary transformation.