[HTML][HTML] Change of rings and singularity categories

S Oppermann, C Psaroudakis, T Stai - Advances in Mathematics, 2019 - Elsevier
We investigate the behavior of singularity categories and stable categories of Gorenstein
projective modules along a morphism of rings. The natural context to approach the problem …

Relative singularity categories, Gorenstein objects and silting theory

J Wei - Journal of Pure and Applied Algebra, 2018 - Elsevier
We study singularity categories through Gorenstein objects in triangulated categories and
silting theory. Let ω be a presilting subcategory of a triangulated category T. We introduce …

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 …

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 …

The Gorenstein defect category

PA Bergh, S Oppermann… - The Quarterly Journal of …, 2015 - academic.oup.com
We consider the homotopy category of complexes of projective modules over a Noetherian
ring. Truncation at degree zero induces a fully faithful triangle functor from the totally acyclic …

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 …

The singularity category of an exact category applied to characterize Gorenstein schemes

LW Christensen, N Ding, S Estrada, J Hu… - … Quarterly Journal of …, 2023 - academic.oup.com
We construct a non-affine analogue of the singularity category of a Gorenstein local ring.
With this, Buchweitz's classic equivalence of three triangulated categories over a Gorenstein …

Frobenius functors and Gorenstein homological properties

XW Chen, W Ren - Journal of Algebra, 2022 - Elsevier
We prove that any faithful Frobenius functor between abelian categories preserves the
Gorenstein projective dimension of objects. Consequently, it preserves and reflects …

Finiteness in derived categories of local rings

WG Dwyer, JPC Greenlees, SB Iyengar - Commentarii mathematici …, 2006 - ems.press
New homotopy invariant finiteness conditions on modules over commutative rings are
introduced, and their properties are studied systematically. A number of finiteness results for …

The stable module category of a general ring

D Bravo, J Gillespie, M Hovey - arXiv preprint arXiv:1405.5768, 2014 - arxiv.org
For any ring R we construct two triangulated categories, each admitting a functor from R-
modules that sends projective and injective modules to 0. When R is a quasi-Frobenius or …