On the Iterated Complex Transfer.
On the rational homotopy Lie algebra of spaces with finite dimensional rational cohomology and homotopy
The problem of the characterization of graded Lie algebras which admit a realization as the homotopy Lie algebra of a space of type is discussed. The central results are formulated in terms of varieties of structure constants, several criterions for concrete algebras are also deduced.
On the Segal conjecture for compact Lie groups.
On the Self-Equivalences of a Space with Non-cyclic Fundamental Group.
On the shape of pointed compact connected subsets of
On the Space of Maps of a Closed Surface into the 2-Sphere.
On the Unstable Homotopy Spectral Sequences.
On the vanishing of local homotopy groups for isolated singularities of complex spaces.
On Whitehead's inequality, .
Open subgroups of free topological groups
The theory of covering spaces is often used to prove the Nielsen-Schreier theorem, which states that every subgroup of a free group is free. We apply the more general theory of semicovering spaces to obtain analogous subgroup theorems for topological groups: Every open subgroup of a free Graev topological group is a free Graev topological group. An open subgroup of a free Markov topological group is a free Markov topological group if and only if it is disconnected.
Opérations cohomologiques secondaires
Opérations cohomologiques secondaires (suite)
Opérations d'Adams en K-homologie et applications
Ordinary and directed combinatorial homotopy, applied to image analysis and concurrency.
Phantom maps and purity in modular representation theory, I
Let k be a field and G a finite group. By analogy with the theory of phantom maps in topology, a map f : M → ℕ between kG-modules is said to be phantom if its restriction to every finitely generated submodule of M factors through a projective module. We investigate the relationships between the theory of phantom maps, the algebraic theory of purity, and Rickard's idempotent modules. In general, adding one to the pure global dimension of kG gives an upper bound for the number of phantoms we need...
Points quadruples d'immersions de variétés de dimension trois en codimension un
Power domains
Primitive and Framed Elements in MU*Z/p.
Products between homotopy groups
Profinite homotopy theory.