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arXiv 2303.04993math.RT
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Bridgeland的Dynkin类型Hall代数的sheaf实现

Sheaf realization of Bridgeland's Hall algebra of Dynkin type

School of Mathematical Sciences, Peking University(北京大学数学科学学院);The University of Hong Kong(香港大学);Academy of Mathematics and Systems Science, Chinese Academy of Sciences(中国科学院数学与系统科学研究院);Max Planck Institute for mathematics(马克斯·普朗克数学研究所);School of Mathematical Sciences, Beijing Normal University(北京师范大学数学科学学院)

Jiepeng Fang, Yixin Lan, Jie Xiao

AI总结:

本文基于Bridgeland的Dynkin类型Hall代数,通过sheaf方法实现了量子群的范畴化,并获得了具有正性的基和整数形式的范畴化。

摘要:

作为[6]中的一个结果,Bridgeland通过有限域上quiver表示的双周期投射复形的Ringel-Hall代数的局部化,实现了量子群$\mathbf{U}_v$。在本文中,我们将Lusztig对nilpotent部分$\mathbf{U}_v^+$的范畴构造推广到Bridgeland的Dynkin类型Hall代数。特别是,我们得到了双周期投射复形的Ringel-Hall代数的一个基,该基具有正性;我们范畴化了通用Bridgeland Hall代数的整数形式,该形式与$\mathbf{U}_v$的Poisson积分形式同构,并获得了该整数形式的$\mathbb{Z}[v,v^{-1}]$-基。

英文摘要:

As one of results in [6], Bridgeland realized the quantum group $\mathbf{U}_v$ via the localization of Ringel-Hall algebra for the two-periodic projective complexes of quiver representations over a finite field. In the present paper, we generalize Lusztig's categorical construction for the nilpotent part $\mathbf{U}_v^+$ to Bridgeland's Hall algebra of Dynkin type. In particular, we obtain a basis of the Ringel-Hall algebra for the two-periodic projective complexes which has the positivity, and we categorify an integral form of the generic Bridgeland's Hall algebra which is isomorphic to the Poisson integral form of $\mathbf{U}_v$, and obtain a $\mathbb{Z}[v,v^{-1}]$-basis of this integral form.

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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