1. Homologie effective
A note on a 3-dimensional homogeneous space
Complex reflections and polynomial generators of homotopy groups.
Complex structures on the Iwasawa manifold.
Construction d’éléments dans
Continuous mappings with an infinite number of topologically critical points
We prove that the topological φ-category of a pair (M,N) of topological manifolds is infinite if the algebraic φ-category of the pair of fundamental groups (π₁(M),π₁(N)) is infinite. Some immediate consequences of this fact are also pointed out.
Das K (..., 1)-Problem für die affinen Wurzelsysteme vom Typ An, Cn.
Geometric Modules over the Burnside Ring.
Higher Torsion in SG and BSG.
Homotopie in homogenen komplexen Mannigfaltigkeiten.
Homotopy type of symplectomorphism groups of .
Invariant Measures of Horospherical Flows on Noncompact Homogeneous Spaces.
James Numbers.
Mod 2 exterior H-spaces.
Non completely solvable systems of complex first order PDEs
On the homotopy groups of some equivariant automorphism groups of spheres
On two results of Singhof
For a compact connected semisimple Lie group we shall prove two results (both related with Singhof’s paper [13]) on the Lusternik-Schnirelmann category of the adjoint orbits of , respectively the 1-dimensional relative category of a maximal torus in . The techniques will be classical, but we shall also apply some basic results concerning the so-called -category (cf. [14]).
Representation types and 2-primary homotopy groups of certain compact Lie groups.
Some Non-Linear Equivariant Sphere Bundles
Structure of the group of homeomorphisms preserving a good measure on a compact manifold