English

$\tau$-tilting theory in abelian categories

Representation Theory 2023-02-07 v1 Category Theory

Abstract

Let A\mathcal A be a Hom-finite abelian category with enough projectives. In this note, we show that any covariantly finite τ\tau-rigid subcategory is contained in a support τ\tau-tilting subcategory. We also show that support τ\tau-tilting subcategories are in bijection with certain finitely generated torsion classes. Some applications of our main results are also given.

Keywords

Cite

@article{arxiv.2010.14869,
  title  = {$\tau$-tilting theory in abelian categories},
  author = {Yu Liu and Panyue Zhou},
  journal= {arXiv preprint arXiv:2010.14869},
  year   = {2023}
}

Comments

7 pages, comments are welcome

R2 v1 2026-06-23T19:42:42.772Z