Actions, functors and the bar construction
Algebra cochains and cyclic cohomology
Applications of perturbation theory to iterated fibrations.
Bar complexes and extensions of classical exponential functors
We compute Ext-groups between classical exponential functors (i.e. symmetric, exterior or divided powers) and their Frobenius twists. Our method relies on bar constructions, and bridges these Ext-groups with the homology of Eilenberg-Mac Lane spaces.This article completes earlier results of the author, and provides an alternative approach to classical Ext-computations in the category of strict polynomial functors over fields. We also obtain significant Ext-computations for strict polynomial functors...
Category of -categories.
Cochain operations defining Steenrod--products in the bar construction.
Der Pontryagin-Ring von Quotienten eines Torus.
Differential equations, Spencer cohomology, and computing resolutions.
Hopf algebras up to homotopy and the Bockstein spectral sequence.
Lefschetz number and degree of a self-map
Minimal Models in Homotopy Theory.
Non-abelian cohomology via parity quasi-complexes.
On a multiplicativity up to homotopy of the Gugenheim map.
On the cohomology algebra of a fiber.
On the Connes operator in Hochschild homology.
Small models for chain algebras.
Sur la cohomologie continue des groupes localement compacts
The Bar Spectral Sequence converging to h*(SO(2n+1)).
The cohomology ring of free loop spaces.
The homology of Ω(X v Y).