English

Recollements and $n$-cotorsion pairs

Category Theory 2024-03-08 v1

Abstract

In the present paper, we study the relationships of nn-cotorsion pairs among three abelian categories in a recollement. Under certain conditions, we present an explicit construction of gluing of nn-cotorsion pairs in an abelian category D\mathcal{D} with respect to nn-cotorsion pairs in abelian categories D\mathcal{D}^{'}, D\mathcal{D}^{''} respectively. On the other hand, we study the construction of nn-cotorsion pairs in abelian categories D\mathcal{D}^{'}, D\mathcal{D}^{''} obtained from nn-cotorsion pairs in an abelian category D\mathcal{D}.

Keywords

Cite

@article{arxiv.2403.04220,
  title  = {Recollements and $n$-cotorsion pairs},
  author = {Weiqing Cao and Jiaqun Wei and Kaili Wu},
  journal= {arXiv preprint arXiv:2403.04220},
  year   = {2024}
}
R2 v1 2026-06-28T15:11:49.761Z