Classification of the Tor-Algebras of Codimension Four Gorenstein Local Rings
Classifying spaces of categories and term rewriting.
Cochain operations and subspace arrangements.
Cochains and homotopy type
Finite type nilpotent spaces are weakly equivalent if and only if their singular cochains are quasi-isomorphic as E∞ algebras. The cochain functor from the homotopy category of finite type nilpotent spaces to the homotopy category of E∞ algebras is faithful but not full.
Coherent prohomotopical algebra
Coherent prohomotopy theory
Coherent Rings and Homologically Finite Subcategories.
Cohomología 2-dimensional con coeficientes en grupos categoría.
Cohomología respecto a una variedad de una categoría.
Cohomological Dimension of Local Fields.
Cohomologie des algèbres associatives
Cohomologie des algèbres de Lie croisées et -théorie de Milnor additive
Dans cet article, nous définissons des modules de (co)-homologie , , , , où et sont des algèbres de Lie munies d’une structure supplémentaire (algèbres de Lie croisées), qui satisfont les propriétés usuelles des foncteurs cohomologiques. Si est une -algèbre, nous utilisons ces modules d’homologie pour comparer le groupe d’homologie cyclique avec un analogue additif du groupe de -théorie de Milnor .
Cohomologie, -groupes et fonctorialité
Cohomologies bivariantes de type cyclique
In the article we propose a construction of bivariant cohomology of a couple of chain complexes with periodicities. In this way we obtain definitions of bivariant dihedral and bivariant reflective cohomology of an algebra . Bivariant cyclic and quaternionic cohomologies appear as particular cases of this construction. The case of invertible in the ground ring is studied particulary.Dans cet article nous proposons une définition de la cohomologie bivariante pour une paire de complexes de chaînes...
Cohomologies et extensions de catégories.
Cohomology of groups, Abelian Sylow subgroups and splendid equivalences.
Cohomology of groups with operators.
Cohomology theories and infinite CW-Complexes.
Cohomology without projectives
Co-H-structures on equivariant Moore spaces
Let G be a finite group, the category of canonical orbits of G and b a contravariant functor to the category of abelian groups. We investigate the set of G-homotopy classes of comultiplications of a Moore G-space of type (A,n) where n ≥ 2 and prove that if such a Moore G-space X is a cogroup, then it has a unique comultiplication if dim X < 2n - 1. If dim X = 2n-1, then the set of comultiplications of X is in one-one correspondence with . Then the case leads to an example of infinitely...