activity
20072024
most citedAn example of Melkersson subcategory which is not closed under injective hulls

1 citations · 2 across the 7 of their papers we have counts for

collaborators

7 papers

math.AC2024

Mutations of ordinary torsion theories and generalized torsion theories connected by a Serre subcategory

Takeshi Yoshizawa

Understanding how torsion theories are described and constructed is crucial to the study of torsion theory. Mutations of torsion theories have been studied as a method of construct…

math.AC2021

Annihilators of local cohomology modules via a classification theorem of the dominant resolving subcategories

Takeshi Yoshizawa

This paper investigates when local cohomology modules have an annihilator that does not depend on the choice of an ideal. Takahashi classified the dominant resolving subcategories…

math.AC2017

Melkersson conditions with respect to a prime ideal

Takeshi Yoshizawa

Aghapournahr and Melkersson introduced the notion of Melkersson condition on a Serre subcategory of the module category over a commutative noetherian ring. This paper investigates…

math.AC2010★ 1 cited

An example of Melkersson subcategory which is not closed under injective hulls

Takeshi Yoshizawa

The Melkersson subcategory is a special Serre subcategory. It was proved that a Serre subcategory which is closed under injective hulls is a Melkersson subcategory. However, it has…

math.AC2010

Subcategories of extension modules by Serre subcategories

Takeshi Yoshizawa

In this paper, we consider subcategories consisting of the extensions of modules in two given Serre subcategories to find a method of constructing Serre subcategories of the catego…

math.AC2010★ 1 cited

Abstract local cohomology functors

Yuji Yoshino, Takeshi Yoshizawa

We propose to define the notion of abstract local cohomology functors. The derived functors of the ordinary local cohomology functor with support in the closed subset defined by an…