La conjecture de Segal
La décomposition des espaces des lacets et la torsion impaire des groupes d'homotopie
La structure des copolyèdres au sens de Stamm.
Les voisinages réguliers ouverts : critères homotopiques d'identification
L’espace classifiant de la -théorie algébrique
Line Bundles over Framed Manifolds.
Line Fields with Branch Defects.
Link maps and the geometry of their invariants.
Localization, Completion and detecting equivariant maps on Skeletons.
Locally finite approximation of Lie groups, I.
Loop spaces and homotopy operations
We describe an obstruction theory for an H-space X to be a loop space, in terms of higher homotopy operations taking values in . These depend on first algebraically “delooping” the Π-algebras , using the H-space structure on X, and then trying to realize the delooped Π-algebra.
Low dimensional homotopy groups of suspensions of the Hawaiian earring
We study the (n+1)st homotopy groups and the shape groups of the (n-1)-fold reduced and unreduced suspensions of the Hawaiian earring.
Lower equivariant K-theory.