Openness of the regular locus and generators for module categories

SB Iyengar, R Takahashi - Acta Mathematica Vietnamica, 2019 - Springer
This work clarifies the relationship between the openness of the regular locus of a
commutative Noetherian ring R and the existence of generators for the category of finitely …

Resolving subcategories closed under certain operations and a conjecture of Dao and Takahashi

A Sadeghi, R Takahashi - Michigan Mathematical Journal, 2021 - projecteuclid.org
Let R be a commutative Noetherian local ring with residue field k. Let X be a resolving
subcategory of finitely generated R-modules. This paper mainly studies when X contains k …

Classifying subcategories of modules

M Hovey - Transactions of the American Mathematical Society, 2001 - ams.org
Let $ R $ be the quotient of a regular coherent commutative ring by a finitely generated
ideal. In this paper, we classify all abelian subcategories of finitely presented $ R $-modules …

Annihilation of cohomology and strong generation of module categories

SB Iyengar, R Takahashi - International Mathematics Research …, 2016 - academic.oup.com
The cohomology annihilator of a noetherian ring that is finitely generated as a module over
its center is introduced. Results are established linking the existence of nontrivial …

Classifying subcategories of modules over a commutative Noetherian ring

R Takahashi - Journal of the London Mathematical Society, 2008 - Wiley Online Library
Let R be a quotient ring of a commutative coherent regular ring by a finitely generated ideal.
Hovey gave a bijection between the set of coherent subcategories of the category of finitely …

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 …

Classifying preaisles of derived categories of complete intersections

R Takahashi - arXiv preprint arXiv:2309.06074, 2023 - arxiv.org
Let $ R $ be a commutative noetherian ring. Denote by $\operatorname {mod} R $ the
category of finitely generated $ R $-modules, by $\operatorname {D^ b}(R) $ the bounded …

Classifying subcategories of finitely generated modules over a Noetherian ring

D Stanley, B Wang - Journal of Pure and Applied Algebra, 2011 - Elsevier
For R a commutative Noetherian ring, wide and Serre subcategories of finitely generated R-
modules have been classified by their support. This paper studies general torsion classes …

Modules in resolving subcategories which are free on the punctured spectrum

R Takahashi - Pacific journal of mathematics, 2009 - msp.org
Let R be a commutative noetherian local ring, and let 𝒳 be a resolving subcategory of the
category of finitely generated R-modules. In this paper, we study modules in 𝒳 by relating …

Pure derived and pure singularity categories

T Cao, W Ren - Journal of Algebra and Its Applications, 2020 - World Scientific
Firstly, we compare the bounded derived categories with respect to the pure-exact and the
usual exact structures, and describe bounded derived category by pure-projective modules …