吉林大学学报(理学版) ›› 2026, Vol. 64 ›› Issue (5): 1021-1028.

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Abelian范畴中n-挠对的粘合

薛逢春, 汪力, 刘大俊


  

  1. 安徽工程大学 数理与金融学院, 安徽 芜湖 241000
  • 收稿日期:2026-02-05 出版日期:2026-09-26 发布日期:2026-09-26
  • 通讯作者: 汪力 E-mail:wl04221995@163.com

Recollements of n-Torsion Pairs in Abelian Categories

Xue Fengchun, Wang Li, Liu Dajun   

  1. School of Mathematics-Physics and Finance, Anhui Polytechnic University, Wuhu 241000, Anhui Province, China
  • Received:2026-02-05 Online:2026-09-26 Published:2026-09-26

摘要: 首先, 定义并研究Abelian范畴中的n-挠对, 并设(A,B,C)是Abelian范畴中的粘合. 其次, 利用高阶扩张和推出拉回等方法证明: A和C中的n-挠对可诱导B中的n-挠对; 反之, B中的n-挠对也可诱导A和C中的n-挠对.

关键词: Abelian范畴, n-挠对, 粘合

Abstract: Firstly,  we  define and study n-torsion pairs in Abelian categories, and let (A,B,C) be a recollement of Abelian categories. Secondly, by using methods such as higher extensions, pushout, and pullback, we prove that an n-torsion pair in A and C can induce an n-torsion pair in B. Conversely, an n-torsion pair in B can also induce an n-torsion pair in A and C.


Key words: Abelian category, n-torsion pair, recollemen

中图分类号: 

  • O154.2