P*-Invariant ideals in rings of invariants.
Points multiples isolés d'immersions de codimension quatre.
Polynomial algebras over the Steenrod algebra.
Polynomial algebras Which are Modules Over the mod-p Steenrod Algebra
Polynomial functors over finite fields
Polynomial operations on stable cohomotopy.
Postnikov invariants of H-spaces
It is known that the order of all Postnikov k-invariants of an H-space of finite type is finite. This paper establishes the finiteness of the order of the k-invariants of X in dimensions m ≤ 2n if X is an (n-1)-connected H-space which is not necessarily of finite type (n ≥ 1). Similar results hold more generally for higher k-invariants if X is an iterated loop space. Moreover, we provide in all cases explicit universal upper bounds for the order of the k-invariants of X.
Postnikov Towers Associated with Complex 2-Plane and Symplectic Line Bundles.
Problèmes d'existence et d'homotopie dans les feuilletages
Product structures in pyramids of higher order cohomology operations.
Profinite spaces and problems of realizability. (Espaces profinis et problèmes de réalisabilité.)
Projective k-invariants
Pyramids of higher order cohomology operations in the p-torsion-free category.