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arXiv 2107.01045math.RT
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温柔代数在高等同调代数中的作用

The role of gentle algebras in higher homological algebra

Johanne Haugland, Karin M. Jacobsen, Sibylle Schroll

摘要:

研究了温柔代数在高等同调代数中的作用。本文的第一部分证明了:如果温柔代数$Λ$的模范畴对某个$d \geq 2$包含$d$ -簇倾斜子范畴,则$Λ$是根平方零Nakayama代数。给出了弱$d$ -表示有限温柔代数的一个完全分类.在第二部分中,我们利用导出范畴的几何模型证明了在三角剖分下的一个类似结果。更精确地说,我们证明了如果$\mathcal{D}^b(Λ)$包含一个$d$ -簇倾斜子范畴,并且该子范畴在$[d]$下是闭的,那么$Λ$等价于Dynkin型$A$的一个代数.此外,我们的方法给出了$\mathcal{D}^b(Λ)$的所有$d$ -簇倾斜子类的几何特征,这些子类在$[d]$下是封闭的。

英文摘要:

We investigate the role of gentle algebras in higher homological algebra. In the first part of the paper, we show that if the module category of a gentle algebra $Λ$ contains a $d$-cluster tilting subcategory for some $d \geq 2$, then $Λ$ is a radical square zero Nakayama algebra. This gives a complete classification of weakly $d$-representation finite gentle algebras. In the second part, we use a geometric model of the derived category to prove a similar result in the triangulated setup. More precisely, we show that if $\mathcal{D}^b(Λ)$ contains a $d$-cluster tilting subcategory that is closed under $[d]$, then $Λ$ is derived equivalent to an algebra of Dynkin type $A$. Furthermore, our approach gives a geometric characterization of all $d$-cluster tilting subcategories of $\mathcal{D}^b(Λ)$ that are closed under $[d]$.

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。

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