Compact generators in categories of matrix factorizations

T Dyckerhoff - 2011 - projecteuclid.org
We study the category of matrix factorizations associated to the germ of an isolated
hypersurface singularity. This category is shown to admit a compact generator which is …

On two examples by Iyama and Yoshino

B Keller, D Murfet, M Van den Bergh - Compositio Mathematica, 2011 - cambridge.org
In a recent paper, Iyama and Yoshino considered two interesting examples of isolated
singularities over which it is possible to classify the indecomposable maximal Cohen …

Totally acyclic complexes over Noetherian schemes

D Murfet, S Salarian - Advances in Mathematics, 2011 - Elsevier
We define a notion of total acyclicity for complexes of flat quasi-coherent sheaves on a semi-
separated noetherian scheme, and study these complexes using the pure derived category …

An Auslander-type result for Gorenstein-projective modules

XW Chen - Advances in Mathematics, 2008 - Elsevier
An artin algebra A is said to be CM-finite if there are only finitely many, up to isomorphisms,
indecomposable finitely generated Gorenstein-projective A-modules. We prove that for a …

The stable monomorphism category of a Frobenius category

XW Chen - arXiv preprint arXiv:0911.1987, 2009 - arxiv.org
For a Frobenius abelian category $\mathcal {A} $, we show that the category ${\rm
Mon}(\mathcal {A}) $ of monomorphisms in $\mathcal {A} $ is a Frobenius exact category; …

[PDF][PDF] Gorenstein derived categories and Gorenstein singularity categories

N Gao, P Zhang - preprint, 2008 - math.uni-bielefeld.de
The Gorenstein derived category is introduced and studied via Verdier's localization of
homotopy category respect to the saturated multiplicative system of Gorenstein quasi …

Noncommutative Gorenstein Projective Schemes and Gorenstein-Injective Sheaves

XW Chen - arXiv preprint arXiv:0804.1015, 2008 - arxiv.org
We prove that if a positively-graded ring $ R $ is Gorenstein and the associated torsion
functor has finite cohomological dimension, then the corresponding noncommutative …

[PDF][PDF] ON CM-FINITE GORENSTEIN ARTIN ALGEBRAS

XWU CHEN - arXiv preprint arXiv:0709.3452, 2007 - Citeseer
An artin algebra A is said to be CM-finite if there are only finitely many, up to isomorphisms,
indecomposable finitely-generated Gorenstein-projective A-modules. We prove that for a …