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arXiv 2006.07866math.RTmath.CTmath.RA
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支持$τ_n$ -倾斜副

Support $τ_n$-tilting pairs

Panyue Zhou, Bin Zhu

摘要:

我们引入了Adachi-Iyama-Reiten支撑$τ$ -倾斜对概念的更高版本,它是Jacobsen-Jørgensen意义下的极大$τ_n$ -刚性对的推广.设$\mathcal C$是一个具有$n$ -悬挂函子$Σ^n$和Opperman-Thomas簇倾斜对象的$(n+2)$ -角范畴.证明了$\mathcal C$中的相对$n$ -刚性对象与$n$ -阿贝尔范畴$\mathcal C/{\rm add}Σ^n T$中的$τ_n$ -刚性对的双射,以及$\mathcal C$中的相对极大$n$ -刚性对象与支撑$τ_n$ -倾斜对的双射.我们还表明,相对$n$ -自垂直的对象是双射最大的$τ_n$ -刚性对。这些结果推广了Jacobsen-Jørgensen关于$\mathcal C$是$2n$-Calabi-Yau的工作和Yang-Zhu关于$n=1$的工作。

英文摘要:

We introduce the higher version of the notion of Adachi-Iyama-Reiten's support $τ$-tilting pairs, which is a generalization of maximal $τ_n$-rigid pairs in the sense of Jacobsen-Jørgensen. Let $\mathcal C$ be an $(n+2)$-angulated category with an $n$-suspension functor $Σ^n$ and an Opperman-Thomas cluster tilting object. We show that relative $n$-rigid objects in $\mathcal C$ are in bijection with $τ_n$-rigid pairs in the $n$-abelian category $\mathcal C/{\rm add}Σ^n T$, and relative maximal $n$-rigid objects in $\mathcal C$ are in bijection with support $τ_n$-tilting pairs. We also show that relative $n$-self-perpendicular objects are in bijection with maximal $τ_n$-rigid pairs. These results generalise the work for $\mathcal C$ being $2n$-Calabi-Yau by Jacobsen-Jørgensen and the work for $n=1$ by Yang-Zhu.

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