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QUOTIENT CATEGORIES OF n-ABELIAN CATEGORIES
Glasgow Mathematical Journal ( IF 0.5 ) Pub Date : 2019-10-01 , DOI: 10.1017/s0017089519000417 QILIAN ZHENG , JIAQUN WEI
Glasgow Mathematical Journal ( IF 0.5 ) Pub Date : 2019-10-01 , DOI: 10.1017/s0017089519000417 QILIAN ZHENG , JIAQUN WEI
The notion of mutation pairs of subcategories in an n -abelian category is defined in this paper. Let ${\cal D} \subseteq {\cal Z}$ be subcategories of an n -abelian category ${\cal A}$ . Then the quotient category ${\cal Z}/{\cal D}$ carries naturally an (n + 2) -angulated structure whenever $ ({\cal Z},{\cal Z}) $ forms a ${\cal D} \subseteq {\cal Z}$ -mutation pair and ${\cal Z}$ is extension-closed. Moreover, we introduce strongly functorially finite subcategories of n -abelian categories and show that the corresponding quotient categories are one-sided (n + 2)-angulated categories. Finally, we study homological finiteness of subcategories in a mutation pair.
中文翻译:
n-阿贝尔范畴的商范畴
子类别中的突变对的概念n -abelian 范畴在本文中定义。让${\cal D} \subseteq {\cal Z}$ 是一个子类n -abelian 范畴${\cal A}$ . 那么商类${\cal Z}/{\cal D}$ 每当$ ({\cal Z},{\cal Z}) $ 形成一个${\cal D} \subseteq {\cal Z}$ -突变对和${\cal Z}$ 是扩展封闭的。此外,我们引入了强函数有限的子类别n -abelian 类别,并表明相应的商类别是单边 (n + 2) 角度类别。最后,我们研究了突变对中子类别的同调有限性。
更新日期:2019-10-01
中文翻译:
n-阿贝尔范畴的商范畴
子类别中的突变对的概念