Cohomological dimensions of specialization-closed subsets and subcategories of modules

H Matsui, T Nam, R Takahashi, N Tri, D Yen - Proceedings of the American …, 2021 - ams.org
Let $ R $ be a commutative noetherian ring. In this paper, we study specialization-closed
subsets of $\mathrm {Spec} R $. More precisely, we first characterize the specialization …

Cofiniteness with respect to extension of Serre subcategories at small dimensions

R Sazeedeh - Journal of Mathematics, 2023 - Wiley Online Library
Let A denote a commutative Noetherian ring, a be an ideal of A, X be an arbitrary dense
subcategory of A‐modules, and N be the full subcategory of finite A‐modules. In this paper …

Filtrations in module categories, derived categories, and prime spectra

H Matsui, R Takahashi - International Mathematics Research …, 2022 - academic.oup.com
Let be a commutative noetherian ring. The notion of-wide subcategories of is introduced and
studied in Matsui–Nam–Takahashi–Tri–Yen in relation to the cohomological dimension of a …

On localizing subcategories of derived categories

R Takahashi - Journal of mathematics of Kyoto University, 2009 - projecteuclid.org
Let $ A $ be a commutative noetherian ring. In this paper, we interpret localizing
subcategories of the derived category of $ A $ by using subsets of Spec $ A $ and …

Cofiniteness with respect to extension of Serre subcategories

N Alipour, R Sazeedeh - Communications in Algebra, 2023 - Taylor & Francis
Let R be a commutative Noetherian ring, a be an ideal of R, S be a Serre subcategory of R-
modules satisfying the condition C a, N be a finitely generated R-module and M be an …

Localization functors and cosupport in derived categories of commutative Noetherian rings

T Nakamura, Y Yoshino - Pacific Journal of Mathematics, 2018 - msp.org
Let R be a commutative Noetherian ring. We introduce the notion of localization functors λ W
with cosupports in arbitrary subsets W of Spec R; it is a common generalization of …

Classification of dominant resolving subcategories by moderate functions

R Takahashi - Illinois Journal of Mathematics, 2021 - projecteuclid.org
Let R be a commutative Noetherian ring. Denote by mod R the category of finitely generated
R-modules. In this paper, we study dominant resolving subcategories of mod R. We …

Extension functors of local cohomology modules

M Aghapournahr, AJ Taherizadeh, A Vahidi - arXiv preprint arXiv …, 2009 - arxiv.org
Let $ R $ be a commutative Noetherian ring with non-zero identity, $\fa $ an ideal of $ R $,
and $ X $ an $ R $--module. In this paper, for fixed integers $ s, t $ and a finite $\fa $--torsion …

[HTML][HTML] A local duality principle in derived categories of commutative Noetherian rings

T Nakamura, Y Yoshino - Journal of Pure and Applied Algebra, 2018 - Elsevier
Let R be a commutative Noetherian ring. We introduce the notion of colocalization functors γ
W with supports in arbitrary subsets W of Spec R. If W is a specialization-closed subset, then …

A generalization of the dimension and radius of a subcategory of modules and its applications

Y Mifune - arXiv preprint arXiv:2401.11153, 2024 - arxiv.org
Let $ R $ be a commutative noetherian local ring and denote by $\operatorname {mod} R $
the category of finitely generated $ R $-modules. In this paper, we give some evaluations of …