On Gorenstein homological dimension of groups

Y Luo, W Ren - arXiv preprint arXiv:2205.15542, 2022 - arxiv.org
Let $ G $ be a group and $ R $ a commutative ring. We define the Gorenstein homological
dimension of $ G $ over $ R $, denoted by ${\rm Ghd} _ {R} G $, as the Gorenstein flat …

Gorenstein cohomological dimension and stable categories for groups

W Ren - arXiv preprint arXiv:2206.09589, 2022 - arxiv.org
First we study the Gorenstein cohomological dimension ${\rm Gcd} _RG $ of groups $ G $
over coefficient rings $ R $, under changes of groups and rings; a Gorenstein version of …

Eventually homological isomorphisms and Gorenstein projective modules

Y Qin, D Shen - Science China Mathematics, 2023 - Springer
We prove that a certain eventually homological isomorphism between module categories
induces triangle equivalences between their singularity categories, Gorenstein defect …

Frobenius functors, stable equivalences and K-theory of Gorenstein projective modules

W Ren - Journal of Algebra, 2022 - Elsevier
Owing to the difference in K-theory, an example by Dugger and Shipley implies that the
equivalence of stable categories of Gorenstein projective modules should not be a Quillen …

Ascent and descent of Gorenstein homological properties

J Liu, W Ren - arXiv preprint arXiv:2309.02372, 2023 - arxiv.org
Let $\varphi\colon R\rightarrow A $ be a ring homomorphism, where $ R $ is a commutative
noetherian ring and $ A $ is a finite $ R $-algebra. We give criteria for detecting the ascent …

Homological invariants of unbounded complexes under Frobenius extensions

D Wu, Y Wang - Communications in Algebra, 2023 - Taylor & Francis
Abstract Let R⊂ S be a Frobenius extension of rings and M an S-complex. It is proven that if
the Gorenstein projective (injective) dimension of M as an S-complex is finite, then the …

Triangle equivalences of Gorenstein defect categories induced by homological epimorphisms

Y Zhang, YZ Liu, Y Ma - Communications in Algebra, 2023 - Taylor & Francis
Full article: Triangle equivalences of Gorenstein defect categories induced by homological
epimorphisms Skip to Main Content Taylor and Francis Online homepage Taylor and Francis …

-torsionfree modules and Frobenius extensions

Z Zhao - arXiv preprint arXiv:2301.01903, 2023 - arxiv.org
arXiv:2301.01903v1 [math.RT] 5 Jan 2023 Page 1 arXiv:2301.01903v1 [math.RT] 5 Jan 2023
k-TORSIONFREE MODULES AND FROBENIUS EXTENSIONS ZHIBING ZHAO Abstract. Let …

Gorenstein Homological Properties and Quasi-Frobenius Bimodules

C Huang, Y Sun, Y Zhou - Bulletin of the Iranian Mathematical Society, 2022 - Springer
We establish relations of Gorenstein homological properties of modules and rings linked by
a fixed quasi-Frobenius bimodule. Particularly, let R ⊂ SR⊂ S be a strongly separable …