A bijection between tilting subcategories and cotorsion pairs in extriangulated categories

Z Zhu, J Wei - arXiv preprint arXiv:2403.03546, 2024 - arxiv.org
Let $\mathscr {C} $ be an extriangulated category with enough projectives and injectives.
We give a new definition of tilting subcategories of $\mathscr {C} $ and prove it coincides …

Balanced pairs and recollements in extriangulated categories with negative first extensions

J He, P Zhou - arXiv preprint arXiv:2109.01354, 2021 - arxiv.org
A notion of balanced pairs in an extriangulated category with a negative first extension is
defined in this article. We prove that there exists a bijective correspondence between …

Cut notions in extriangulated categories related to Auslander-Buchweitz theory and cotorsion theory

M Huerta, O Mendoza, C Sáenz, V Santiago - arXiv preprint arXiv …, 2022 - arxiv.org
In this work we introduce notions in Auslander-Buchweitz theory and cotorsion theory in
extriangulated categories which extend the given ones for abelian categories. Although …

Half exact functors associated with cotorsion pairs on exact categories

Y Liu - Acta Mathematica Sinica, English Series, 2019 - Springer
In the previous article “Hearts of twin cotorsion pairs on exact categories. J. Algebra, 394,
245–284 (2013)”, we introduced the notion of the heart for any cotorsion pair on an exact …

On the relation between -cotorsion pairs and -cluster tilting subcategories

J He, P Zhou - Journal of Algebra and its Applications, 2022 - World Scientific
A notion of n-cotorsion pairs in an extriangulated category with enough projectives and
enough injectives is defined in this paper. We show that there exists a one-to-one …

One-sided Frobenius pairs in extriangulated categories

L Tan, Y Gao, Q Chen - Communications in Algebra, 2022 - Taylor & Francis
Let C be an extriangulated category with a proper class ξ of E-triangles. We introduce the
notions of left Frobenius pairs, left (n-) cotorsion pairs and left (weak) Auslander-Buchweitz …

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

Y Ma, H Liu, Y Geng - arXiv preprint arXiv:2108.06642, 2021 - arxiv.org
Extriangulated categories were introduced by Nakaoka and Palu as a simultaneous
generalization of exact categories and triangulated categories. In this paper, we first …

One-sided triangulated categories induced by concentric twin cotorsion pairs

Q Zheng, J Wei - Journal of Algebra and Its Applications, 2020 - World Scientific
Extriangulated categories were introduced by Nakaoka and Palu by extracting the
similarities between exact categories and triangulated categories. Nakaoka and Palu …

A simultaneous generalization of mutation and recollement on a triangulated category

H Nakaoka - arXiv preprint arXiv:1512.02173, 2015 - arxiv.org
In this article, we introduce the notion of {\it concentric twin cotorsion pair} on a triangulated
category. This notion contains the notions of $ t $-structure, cluster tilting subcategory, co-$ t …

Recollements and -cotorsion pairs

W Cao, J Wei, K Wu - arXiv preprint arXiv:2403.04220, 2024 - arxiv.org
In the present paper, we study the relationships of $ n $-cotorsion pairs among three abelian
categories in a recollement. Under certain conditions, we present an explicit construction of …