Coefficient subrings of certain local rings with prime-power characteristic.
Cofinitely semiperfect modules.
Cohen-Macaulay and Gorenstein finitely graded rings
Cohen-Macaulay modules over two-dimensional graph orders
For a split graph order ℒ over a complete local regular domain of dimension 2 the indecomposable Cohen-Macaulay modules decompose - up to irreducible projectives - into a union of the indecomposable Cohen-Macaulay modules over graph orders of type •—• . There, the Cohen-Macaulay modules filtered by irreducible Cohen-Macaulay modules are in bijection to the homomorphisms under the bi-action of the groups , where for a prime π. This problem strongly depends on the nature of . If is regular,...
Coherence relative to a weak torsion class
Let be a ring. A subclass of left -modules is called a weak torsion class if it is closed under homomorphic images and extensions. Let be a weak torsion class of left -modules and a positive integer. Then a left -module is called -finitely generated if there exists a finitely generated submodule such that ; a left -module is called -presented if there exists an exact sequence of left -modules such that are finitely generated free and is -finitely generated; a left -module...
Coherent Rings and Homologically Finite Subcategories.
Cohomological approach to Poisson structures on nonlinear evolution equations.
Cohomological approaches to and of central simple algebras.
Cohomological Properties of Modules with Secondary Representations.
Cohomological Triviality.
Cohomologie de Hochschild des graphes de Kontsevich
Nous calculons la cohomologie de Hochschild directement sur les graphes de Kontsevich. Celle-ci est localisée sur les graphes totalement antisymétriques ayant autant de pieds que de pattes. La considération de cette cohomologie permet de réinterpréter l’équation de formalité pour l’espace .
Cohomologie de Hochschild et espaces projectifs tronqués.
Cohomologie locale de certains anneaux Auslander-Gorenstein.
We give axiomatic conditions in order to calculate the local cohomology of some idempotent kernel functors. These results lie in some new dimension introduced by T. Levasseur for Auslander-Gorenstein rings. Under some hypothesis, we generalize previous results.
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...
Cohomology Groups of Infinite Dimensional Algebras.
Cohomology groups of reduced enveloping algebras.
Cohomology of algebras of dihedral type. I.
Cohomology of algebras of semidihedral type. IV.
Cohomology of Bimodules Over Enveloping Algebras.
Cohomology of Fixed Point Sets and Deformation of Algebras.