$n$-cotorsion pairs in a recollement of extriangulated categories

Fuente: arXiv
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Autori principali: Ma, Xin, Zhou, Panyue
Natura: Preprint
Pubblicazione: 2025
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author Ma, Xin
Zhou, Panyue
author_facet Ma, Xin
Zhou, Panyue
contents Let $(\mathcal{A}, \mathcal{B}, \mathcal{C})$ be a recollement of extriangulated categories.In this paper, we first show how to obtain an $n$-cotorsion pair in $\mathcal{B}$ from given $n$-cotorsion pairs in $\mathcal{A}$ and $\mathcal{C}$. Conversely, we prove that an $n$-cotorsion pair in $\mathcal{B}$ can induce $n$-cotorsion pairs in $\mathcal{A}$ and $\mathcal{C}$ under suitable conditions. As applications, several related results are provided to illustrate our construction.
format Preprint
id arxiv_https___arxiv_org_abs_2508_20331
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle $n$-cotorsion pairs in a recollement of extriangulated categories
Ma, Xin
Zhou, Panyue
Representation Theory
Category Theory
Let $(\mathcal{A}, \mathcal{B}, \mathcal{C})$ be a recollement of extriangulated categories.In this paper, we first show how to obtain an $n$-cotorsion pair in $\mathcal{B}$ from given $n$-cotorsion pairs in $\mathcal{A}$ and $\mathcal{C}$. Conversely, we prove that an $n$-cotorsion pair in $\mathcal{B}$ can induce $n$-cotorsion pairs in $\mathcal{A}$ and $\mathcal{C}$ under suitable conditions. As applications, several related results are provided to illustrate our construction.
title $n$-cotorsion pairs in a recollement of extriangulated categories
topic Representation Theory
Category Theory
url https://arxiv.org/abs/2508.20331