Recent advances in the theory of holonomy
Reduction of Complex Hamiltonian G-Spaces.
Regular and biregular functions in the sense of Fueter - some problems
The biregular functions in the sense of Fueter are investigated. In particular, the class of LR-biregular mappings (left regular with a right regular inverse) is introduced. Moreover, the existence of non-affine biregular mappings is established via examples. Some applications to the quaternionic manifolds are given.
Remark on local existence of -structure with prescribed structural functions on a manifold of dimension two
Remarks on symmetries of parabolic geometries
We consider symmetries on filtered manifolds and we study the -graded parabolic geometries in more details. We discuss the existence of symmetries on the homogeneous models and we conclude some simple observations on the general curved geometries.
Remarques sur les systèmes différentiels
Representations of Compact Lie Groups and Elliptic Operators.