Reciprocity theorems for the classical goups. I: The GL (r, k)-subgroup of GL (2r, k).
Reduction theory using semistability, II.
Regular Elements of Finite Reflection Groups.
Relationen zwischen symplektischen Transvektionen.
Remarks on the intrinsic inverse problem
The intrinsic differential Galois group is a twisted form of the standard differential Galois group, defined over the base differential field. We exhibit several constraints for the inverse problem of differential Galois theory to have a solution in this intrinsic setting, and show by explicit computations that they are sufficient in a (very) special situation.
Représentations linéaires irréductibles d'un groupe réductif sur un corps quelconque.
Representations of algebraic groups in prime characteristics
Representations of Coxeter Groups and Hecke Algebras.
Representations of p-groups at characteristic p l
R-equivalence and rationality problem for semisimple adjoint classical algebraic groups