English

A note on abelian quotient categories

Representation Theory 2020-03-27 v1 Category Theory

Abstract

Let C be a triangulated category with a Serre functor S and X a non-zero contravariantly finite rigid subcategory of C. Then X is cluster tilting if and only if the quotient category C/X is abelian and S(X)=X[2]. As an application, this result generalizes work by Beligiannis.

Keywords

Cite

@article{arxiv.1904.04730,
  title  = {A note on abelian quotient categories},
  author = {Panyue Zhou},
  journal= {arXiv preprint arXiv:1904.04730},
  year   = {2020}
}

Comments

6 pages

R2 v1 2026-06-23T08:34:21.903Z