On the derived categories of coherent sheaves on some homogeneous spaces.
On the derived category of sheaves on a manifold.
On the deviations of a local ring.
On the double Poincaré series of the enveloping algebras of certain graded Lie algebras.
On the equivalence of Quillen's and Swan's -theories.
On the Finistic dimension conjecture for Artinian Rings.
On the functors Ext¹(E,F) for Fréchet spaces
On the geometry of intuitionistic S4 proofs.
On the homology of small categories and asynchronous transition systems.
On the homology theory of categories. I.
On the homology theory of categories. II.
On the nerve of an -category
On the notion of precohomology
On the object-wise tensor product of functors to modules.
On the representability of actions in a semi-abelian category.
On the structure of locally finite pure semisimple Grothendieck categories
On three types of simplicial objects
On weak -homotopy equivalences of modules
Si definisce il gruppo di —omotopia di un singolo modulo e si introduce la nozione di equivalenza -omotopica debole. Sotto determinate condizioni per l'anello di base oppure per i moduli considerati, le equivalenze -omotopiche deboli coincidono con le equivalenze -omotopiche (forti).
On weak monomorphisms and weak epimorphisms in the category of pro-groups.
In this paper we characterize weak monomorphisms and weak epimorphisms in the category of pro-groups. Also we define the notion of weakly exact sequence and we study this notion in the category of pro-groups.
One-sided Gorenstein subcategories
We introduce the right (left) Gorenstein subcategory relative to an additive subcategory of an abelian category , and prove that the right Gorenstein subcategory is closed under extensions, kernels of epimorphisms, direct summands and finite direct sums. When is self-orthogonal, we give a characterization for objects in , and prove that any object in with finite -projective dimension is isomorphic to a kernel (or a cokernel) of a morphism from an object in with finite -projective dimension...