arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2012.05278math.AG
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基于等变$K$理论不变量的Kool-Thomas不变量的精化

Refinements of Kool-Thomas Invariants via Equivariant $K$-theoretic invariants

Rizal Afgani

摘要:

在这篇文章中,我们通过Nekrasov和Okounkov提出的等变$K$理论不变量定义局部曲面的Kool-Thomas不变量的精化。Kool和Thomas将稳定对$\mathcal{P}_χ(X,i_{*}β)$的模的约化阻塞理论定义为应用$τ([pt])^{m}\in H^{*}(\mathcal{P}_χ(X,i_{*}β),\mathbb{Z})$后虚类$\left[\mathcal{P}_χ(S,β)\right]^{red}$的度。$τ([pt])$包含了一个点和一条支持$(\mathcal{F},s)$的曲线的关联信息。$\textbf{Keywords: }$ Kool-Thomas不变量,$K$ -理论不变量,Göttsche Shende不变量

英文摘要:

In this article we are defining a refinement of Kool-Thomas invariants of local surfaces via the equivariant $K$-theoretic invariants proposed by Nekrasov and Okounkov. Kool and Thomas defined the reduced obstruction theory for the moduli of stable pairs $\mathcal{P}_χ(X,i_{*}β)$ as the degree of the virtual class $\left[\mathcal{P}_χ(S,β)\right]^{red}$ after we apply $τ([pt])^{m}\in H^{*}(\mathcal{P}_χ(X,i_{*}β),\mathbb{Z})$. $τ([pt])$ contain the information of the incidence of a point and a curve supporting a $(\mathcal{F},s)$. $\textbf{Keywords: }$Kool-Thomas invariants, $K$-theoretic invariants, Göttsche Shende invariants

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