Cohomology of Congruence Subgroups of SL (n,Z).
Cohomology of Fixed Point Sets and Deformation of Algebras.
Cohomology of Lie groups made discrete.
We give a survey of the work of Milnor, Friedlander, Mislin, Suslin and other authors on the Friedlander-Milnor conjecture on the homology of Lie groups made discrete and its relation to the algebraic K-theory of fields.
Cohomology of S1-orbit Spaces of Cohomology Spheres and Cohomology Complex Projective Spaces.
Cohomology of Symplectomorphism Groups and Critical Values of Hamiltonians.
Cohomology of the Lie Algebra of Vector Fields on a Complex Manifold.
Cohomology of Twisted Projective Spaces and Lena Complexes.
Cohomology of unitary and symplectic groups.
Cohomology Operations Derived from Modular Invariants.
Cohomology rings of symplectic quotients.
Cohomology rings, Rochlin function, linking pairing and the Goussarov-Habiro theory of three-manifolds.
Cohomology with free coefficients of the fundamental group of a graph of groups.
Cohomology without projectives
Coincidence free pairs of maps
This paper centers around two basic problems of topological coincidence theory. First, try to measure (with the help of Nielsen and minimum numbers) how far a given pair of maps is from being loose, i.e. from being homotopic to a pair of coincidence free maps. Secondly, describe the set of loose pairs of homotopy classes. We give a brief (and necessarily very incomplete) survey of some old and new advances concerning the first problem. Then we attack the second problem mainly in the setting of homotopy...
Collared cospans, cohomotopy and TQFT. (Cospans in algebraic topology. II).
Collars in PSL.
Coloured knots and permutations representing 3-manifolds.
Combinatoire des simplexes sans singularités I. Le cas différentiable
On définit le bicomplexe , extension naturelle du complexe engendré par un ensemble simplicial . Ceci permet de définir la notion de ruban de base un cycle de . La somme directe de l’homologie des colonnes de contient, outre l’homologie de , des groupes dans lesquels se trouvent les obstructions à l’existence de rubans. Si est un sous-ensemble simplicial, stable par subdivision, de l’ensemble des simplexes singuliers d’un espace topologique, l’existence de rubans entraîne l’invariance...
Combinatorial 3-manifolds with 10 vertices.
Combinatorial formulae for multiple set-valued labellings.