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arXiv 2402.05656math.RT
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关于某些弦代数的带砖刻画及完美聚类词的一个变体

Characterisation of band bricks over certain string algebras and a variant of perfectly clustering words

Annoy Sengupta, Amit Kuber

AI总结:

本文刻画了无圈弦代数上的带砖,引入弱完美聚类词对作为工具,并给出判断代数砖无限性的算法。

摘要:

推广了Dequêne等人近期关于完美聚类词与特定温和代数族上带砖之间联系的工作,我们刻画了底层箭图无圈的弦代数上的带砖,其刻画基于弱完美聚类词对——这是完美聚类词的一个变体。作为推论,我们刻画了所有此类代数上的带半砖。此外,我们的结果与Mousavand和Paquette的一个结果相结合,提供了一个算法来判断这样的弦代数是否为砖无限代数。

英文摘要:

Generalising a recent work of Dequêne et al. on the connection between perfectly clustering words and band bricks over a particular family of gentle algebras, we characterise band bricks over string algebras whose underlying quiver is acyclic in terms of weakly perfectly clustering pairs of words -- a variant of perfectly clustering words. As a consequence, we characterise band semibricks over all such algebras. Furthermore, the combination of our result and a result of Mousavand and Paquette provides an algorithm to determine whether such a string algebra is brick-infinite.

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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