Construction géométrique des idempotents eulériens. Filtration des groupes de polytopes et des groupes d'homologie de Hochschild
Construction of all homomorphisms of groupoids
Construction of an homology and a cohomology theory associated to a first order formula
Construction of Cartesian closed topological hulls
Construction of Nijenhuis operators and dendriform trialgebras.
Construction of special functors and its applications
Constructions fondamentales de dégré supérieur.
Continuity of projections of natural bundles
This paper is a contribution to the axiomatic approach to geometric objects. A collection of a manifold M, a topological space N, a group homomorphism E: Diff(M) → Homeo(N) and a function π: N → M is called a quasi-natural bundle if (1) π ∘ E(f) = f ∘ π for every f ∈ Diff(M) and (2) if f,g ∈ Diff(M) are two diffeomorphisms such that f|U = g|U for some open subset U of M, then E(f)|π^{-1}(U) = E(g)|π^{-1}(U). We give conditions which ensure that π: N → M is continuous. In particular, if (M,N,E,π)...
Continuous categories revisited.
Continuous Étale Cohomology.
Continuous families : categorical aspects
Continuous fibrations and inverse limits of toposes
Continuous posets and adjoint sequences.
Contractible simplicial objects
We raise the question of when a simplicial object in a catetgory is deemed contractible. The literature offers three definitions. One is the existence of an “extra degeneracy”, indexed by , which does not quite live up to the name. This can be strengthened to a “strong extra degeneracy". Another possibility is that it be homotopic to a constant simplicial object. Despite claims in the literature to the contrary, we show that all three are distinct concepts with strong extra degeneracy implies extra...
Contravariant functors on finite sets and Stirling numbers.
Convenient affine algebraic varieties
Convenient categories for topologists
Convenient vector spaces embed into the Cahiers topos
Convergence in exponentiable spaces.
Convergence in some ringed toposes