English

Lifting of recollements and Gorenstein projective modules

Representation Theory 2022-09-08 v1

Abstract

In the paper, we investigate the lifting of recollements with respect to Gorenstein-projective modules. Specifically, a homological ring epimorphism can induce a lifting of the recollement of the stable category of finitely generated Gorenstein-projective modules; the recollement of the bounded Gorenstein derived categories of some upper triangular matrix algebras can be lifted to the homotopy category of Gorenstein-projective modules. As a byproduct, we give a sufficient and necessary condition on the upper triangular matrix algebra T_{n}(A) to be of finite CM-type for an algebra A of finite CM-type.

Keywords

Cite

@article{arxiv.2209.03192,
  title  = {Lifting of recollements and Gorenstein projective modules},
  author = {Nan Gao and Jing Ma},
  journal= {arXiv preprint arXiv:2209.03192},
  year   = {2022}
}

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11 pages