2021
DOI: 10.1080/00927872.2021.1996585
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Torsion pairs and recollements of extriangulated categories

Abstract: In this article, we prove that if (A, B, C) is a recollement of extriangulated categories, then n-cotorsion pairs in A and C can induce n-cotorsion pairs in B. Conversely, this holds true under natural assumptions. Besides, we give mild conditions on a pseudo cluster tilting subcategory on the middle category of a recollement of extriangulated categories, for the corresponding additive quotients to form a recollement of semi-abelian categories.

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Cited by 5 publications
(1 citation statement)
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“…Recently, gluing techniques with respect to a recollement of extriangulated categories have been investigated; for instance, He, Hu and Zhou [10] glued torsion pairs in a recollement of extriangulated categories; Liu and Zhou [18] glued cotorsion pairs in a recollement of extriangulated categories; etc. Some of results give a simultaneous generalization of recollements of abelian categories and triangulated categories.…”
Section: Introductionmentioning
confidence: 99%
“…Recently, gluing techniques with respect to a recollement of extriangulated categories have been investigated; for instance, He, Hu and Zhou [10] glued torsion pairs in a recollement of extriangulated categories; Liu and Zhou [18] glued cotorsion pairs in a recollement of extriangulated categories; etc. Some of results give a simultaneous generalization of recollements of abelian categories and triangulated categories.…”
Section: Introductionmentioning
confidence: 99%