arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2007.06450math.RTmath.CT
收藏

相对刚性子范畴与$τ$ -倾斜理论

Relative rigid subcategories and $τ$-tilting theory

Yu Liu, Panyue Zhou

摘要:

设$\mathcal B$是具有足够投射$\mathcal P$和足够内射$\mathcal I$的外三角范畴,$\mathcal R$是$\mathcal B$的包含$\mathcal P$的逆变有限刚性子范畴.我们有一个交换商范畴$\mathcal H/\mathcal R\subseteq \mathcal B/\mathcal R$,它等价于${\rm mod}(\mathcal R/\mathcal P)$ .在这篇文章中,我们发现支持$τ$ -倾斜(分别)之间的一一对应关系。$τ$ -刚性)$\mathcal H/\mathcal R$和最大相对刚性(分别为相对刚性)子范畴,并证明了$\mathcal H$中的支撑倾斜子范畴是一类特殊的支撑$τ$倾斜子范畴.当$\mathcal R$是集团倾斜时,我们还研究了$\mathcal B/\mathcal R$的倾斜子范畴与$\mathcal B$的集团倾斜子范畴之间的关系.

英文摘要:

Let $\mathcal B$ be an extriangulated category with enough projectives $\mathcal P$ and enough injectives $\mathcal I$, and let $\mathcal R$ be a contravariantly finite rigid subcategory of $\mathcal B$ which contains $\mathcal P$. We have an abelian quotient category $\mathcal H/\mathcal R\subseteq \mathcal B/\mathcal R$ which is equivalent ${\rm mod}(\mathcal R/\mathcal P)$. In this article, we find a one-to-one correspondence between support $τ$-tilting (resp. $τ$-rigid) subcategories of $\mathcal H/\mathcal R$ and maximal relative rigid (resp. relative rigid) subcategories of $\mathcal H$, and show that support tilting subcategories in $\mathcal H/\mathcal R$ is a special kind of support $τ$-tilting subcategories. We also study the relation between tilting subcategories of $\mathcal B/\mathcal R$ and cluster tilting subcategories of $\mathcal B$ when $\mathcal R$ is cluster tilting.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑