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 …
usual exact structures, and describe bounded derived category by pure-projective modules …
Finiteness Conditions and Relative Singularity Categories
CX Zhang - Acta Mathematica Sinica, English Series, 2022 - Springer
We introduce the n-pure projective (resp., injective) dimension of complexes in n-pure
derived categories, and give some criteria for computing these dimensions in terms of the n …
derived categories, and give some criteria for computing these dimensions in terms of the n …
[HTML][HTML] On pure derived categories
Y Zheng, Z Huang - Journal of Algebra, 2016 - Elsevier
We investigate the properties of pure derived categories of module categories, and show
that pure derived categories share many nice properties of classical derived categories. In …
that pure derived categories share many nice properties of classical derived categories. In …
Finiteness conditions and relative derived categories
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 …
modules, which are called n-pure exact structures. We investigate the properties of n-pure …
Thick subcategories over isolated singularities
R Takahashi - Pacific Journal of Mathematics, 2017 - msp.org
Let R be a commutative noetherian local ring. We denote by mod R the category of finitely
generated R-modules, and by Db (R) the bounded derived category of mod R. First, we …
generated R-modules, and by Db (R) the bounded derived category of mod R. First, we …
Singularity categories and singular equivalences for resolving subcategories
H Matsui, R Takahashi - Mathematische Zeitschrift, 2017 - Springer
Let XX be a resolving subcategory of an abelian category. In this paper we investigate the
singularity category D_ sg (X)= D^ b (mod\, X)/K^ b (proj (mod\, X)) D sg (X ̲)= D b (mod X …
singularity category D_ sg (X)= D^ b (mod\, X)/K^ b (proj (mod\, X)) D sg (X ̲)= D b (mod X …
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 …
commutative Noetherian ring R and the existence of generators for the category of finitely …
Relative singularity categories and Gorenstein‐projective modules
XW Chen - Mathematische Nachrichten, 2011 - Wiley Online Library
We introduce the notion of relative singularity category with respect to a self‐orthogonal
subcategory ω of an abelian category. We introduce the Frobenius category of ω‐Cohen …
subcategory ω of an abelian category. We introduce the Frobenius category of ω‐Cohen …
On the generalizations of global dimensions and singularity categories
X Zhang, T Zhao, D Wang - arXiv preprint arXiv:2306.09832, 2023 - arxiv.org
For each $ n\in\mathbb {N}\cup\{\infty\} $, we introduce the notion of $ n $-singularity
category $\mathbf {D} _ {n {\rm-} sg}(R) $ of a given ring $ R $, which can be seen as a …
category $\mathbf {D} _ {n {\rm-} sg}(R) $ of a given ring $ R $, which can be seen as a …
Relative singularity categories and Gorenstein-projective modules
XW Chen - arXiv preprint arXiv:0709.1762, 2007 - arxiv.org
We introduce the notion of relative singularity category with respect to any self-orthogonal
subcategory $\omega $ of an abelian category. We introduce the Frobenius category of …
subcategory $\omega $ of an abelian category. We introduce the Frobenius category of …