L Positselski - arXiv preprint arXiv:2301.00708, 2023 - arxiv.org
Let $ R $ be a ring and $\mathsf S $ be a class of strongly finitely presented (FP ${} _\infty $) $ R $-modules closed under extensions, direct summands, and syzygies. Let $(\mathsf …
D Bravo, S Odabaşı, CE Parra, MA Pérez - Journal of Algebra, 2022 - Elsevier
In an arbitrary Grothendieck category, we find necessary and sufficient conditions for the class of FP n-injective objects to be a torsion class. By doing so, we propose a notion of n …
A Djament, A Touzé - Transactions of the American Mathematical Society, 2023 - ams.org
We give sufficient conditions which ensure that a functor of finite length from an additive category to finite-dimensional vector spaces has a projective resolution whose terms are …
L Tan, D Wang, T Zhao - Journal of Algebra, 2021 - Elsevier
In this paper, we introduce a class of exact structures in terms of finiteness conditions of modules, which are called n-pure exact structures. We investigate the properties of n-pure …
In this paper we introduce a special kind of relative (co) resolutions associated to a pair of classes of objects in an abelian category $\mathcal {C}. $ We will see that, by studying these …
E Ellis, R Parra - arXiv preprint arXiv:2207.04918, 2022 - arxiv.org
We relate the notions of Noetherian, regular coherent and regular $ n $-coherent category for $\mathbb {Z} $-linear categories with finite objects with the corresponding notions for …
E Ellis, R Parra - Journal of Homotopy and Related Structures, 2023 - Springer
We establish connections between the concepts of Noetherian, regular coherent, and regular n-coherent categories for Z-linear categories with finitely many objects and the …
We present the concept of cotorsion pairs cut along subcategories of an abelian category. This provides a generalization of complete cotorsion pairs, and represents a general …
CE Parra, M Saorín, S Virili - Rev. Mat. Iberoam, 2023 - ems.press
Starting with a Grothendieck category G and a torsion pair t D. T; F/in G, we study the local finite presentability and local coherence of the heart Ht of the associated Happel–Reiten …