A certain Abelian category of weakly cofinite modules
Let $R$ be a commutative Noetherian ring, $I$ an ideal of $R$ and $M$ an arbitrary $R$-module. We show that if the set $X=\cup_{i\geq 2}{\rm Supp}_R({\rm H}^{i}_{I}(R))$ is finite, then the category of all weakly cofinite modules with respect to the ideal $I$ of $R$ is an Abelian subcategory of the category of $R$-modules. In particular, it is true whenever ${\rm q}(I,R)\leq 1$.
Authors
- Moharram Aghapournahr (ORCID: https://orcid.org/0000-0002-8265-9700)
- Nader Omidi
Institutions
- Islamic Azad University, Tehran (IR)
- Arak University (IR)
Publication Details
- Journal
- International Electronic Journal of Algebra
- Published
- 2026-02-15
- DOI
- https://doi.org/10.24330/ieja.1889754
- Primary Topic
- Commutative Algebra and Its Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00