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arXiv 2001.06922math.AGhep-th
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局部曲面上范畴Donaldson-Thomas理论的Hall型代数

Hall-type algebras for categorical Donaldson-Thomas theories on local surfaces

Yukinobu Toda

摘要:

我们表明,范畴化的上同调霍尔代数结构的表面上构造的Porta-Sala下降到那些Donaldson-Thomas范畴的局部表面上介绍了作者的前一篇论文。一个类似的论证也表明,局部曲面上的Pandharipande-Thomas范畴允许曲面上零维层的范畴化COHA的作用。我们还构造了它的单算子的零化子作用,并证明了它们在K-理论中的交换子满足类似于Weyl代数的关系。这一结果可以看作是Weyl代数作用在局部平面曲线上点的Hilbert格式的同调上的Rennemo的一个分类,它与生成PT不变量列的Gopakumar-Vafa公式有关.

英文摘要:

We show that the categorified cohomological Hall algebra structures on surfaces constructed by Porta-Sala descend to those on Donaldson-Thomas categories on local surfaces introduced in the author's previous paper. A similar argument also shows that Pandharipande-Thomas categories on local surfaces admit actions of categorified COHA for zero dimensional sheaves on surfaces. We also construct annihilator actions of its simple operators, and show that their commutator in the K-theory satisfies the relation similar to the one of Weyl algebras. This result may be regarded as a categorification of Weyl algebra action on homologies of Hilbert schemes of points on locally planar curves due to Rennemo, which is relevant for Gopakumar-Vafa formula of generating series of PT invariants.

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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