English

Cotilting modules and Gorenstein homological dimensions

Representation Theory 2025-07-28 v3

Abstract

For a dualizing module DD over a commutative Noetherian ring RR with identity, it is known that its Auslander class AD(R)\mathscr{A}_D\left(R\right) (respectively, Bass class BD(R)\mathscr{B}_D\left(R\right)) is characterized as those RR-modules with finite Gorenstein flat dimension (respectively, finite Gorenstein injective dimension). We establish an analogue of this result in the context of cotilting modules over general Noetherain rings.

Keywords

Cite

@article{arxiv.2407.06364,
  title  = {Cotilting modules and Gorenstein homological dimensions},
  author = {Kamran Divaani-Aazar and Ali Mahin Fallah and Massoud Tousi},
  journal= {arXiv preprint arXiv:2407.06364},
  year   = {2025}
}

Comments

Section 5 from the previous version was deleted because it was not relevant to the paper's aim

R2 v1 2026-06-28T17:33:33.541Z