arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2201.09838math.AGhep-thmath-phmath.MPmath.RT
收藏

关于箭图格式的约化性

On the Reducedness of Quiver Schemes

Yehao Zhou

摘要:

本文证明了当矩映射是平坦的时,特征零点处的一个离散格式是约化的。利用约化结果表明,当矩映射是平坦的时,等变积分公式计算了五维$\mathcal N=2$规范理论的K理论Nekrasov分拆函数.我们还给出了有限仿射A型Dynkin箭图的矩映射的平坦性的一个明确的特征。作为应用,我们给出了Ivan Losev关于A型量化Nakajima箭图簇与A型抛物有限W-代数之间关系的一个定理的改进。

英文摘要:

In this paper we prove that a quiver scheme in characteristic zero is reduced if the moment map is flat. We use the reducedness result to show that the equivariant integration formula computes the K-theoretic Nekrasov partition function of five dimensional $\mathcal N=2$ quiver gauge theories when the moment map is flat. We also give an explicit characterization of flatness of moment map for finite and affine type A Dynkin quivers with framings. As an application, we give a refinement of a theorem of Ivan Losev on the relation between quantized Nakajima quiver variety in type A and parabolic finite W-algebra in type A.

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。

↑