English

A new method to construct model structures from left Frobenius pairs in extriangulated categories

Category Theory 2021-08-31 v2 Representation Theory

Abstract

Extriangulated categories were introduced by Nakaoka and Palu as a simultaneous generalization of exact categories and triangulated categories. In this paper, we first introduce the concept of left Frobenius pairs on an extriangulated category C, and then establish a bijective correspondence between Frobenius pairs and certain cotorsion pairs in C. As an application, some new admissible model structures are established from left Frobenius pairs under certain conditions, which generalizes a result of Hu et al. (J. Algebra 551 (2020) 23-60).

Keywords

Cite

@article{arxiv.2108.06642,
  title  = {A new method to construct model structures from left Frobenius pairs in extriangulated categories},
  author = {Yajun Ma and Haiyu Liu and Yuxian Geng},
  journal= {arXiv preprint arXiv:2108.06642},
  year   = {2021}
}

Comments

13 pages

R2 v1 2026-06-24T05:07:22.260Z