arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2005.01073math.RT
收藏

温柔代数上模的概型与曲面的叠层

Schemes of modules over gentle algebras and laminations of surfaces

Christof Geiß, Daniel Labardini-Fragoso, Jan Schröer

摘要:

研究了温柔代数上模的仿射概型。我们描述了这些方案的光滑点,我们还详细分析了它们的不可约分量。我们的几个结果概括了以前已知的结果,例如,通过下降的无环性,并将带模块。一类特殊的温柔代数是雅可比代数产生于未穿孔的标记曲面的三角剖分。对于这些,我们得到一个双射之间的一组一般τ-减少装饰不可约组件和一组叠层的表面。作为应用,我们得到了与曲面相关的上簇代数中的bangle函数集(由Musiker-Schiffler-Williams定义)与一般的Caldero-Chapoton函数集重合.

英文摘要:

We study the affine schemes of modules over gentle algebras. We describe the smooth points of these schemes, and we also analyze their irreducible components in detail. Several of our results generalize formerly known results, e.g. by dropping acyclicity, and by incorporating band modules. A special class of gentle algebras are Jacobian algebras arising from triangulations of unpunctured marked surfaces. For these we obtain a bijection between the set of generically tau-reduced decorated irreducible components and the set of laminations of the surface. As an application, we get that the set of bangle functions (defined by Musiker-Schiffler-Williams) in the upper cluster algebra associated with the surface coincides with the set of generic Caldero-Chapoton functions.

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。

↑