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arXiv 1901.03014math.AGmath-phmath.MP
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局部曲线DT/PT理论的EGL公式

EGL formula for DT/PT theory of local curves

A. Oblomkov

摘要:

本文证明了带分支的裸单腿PT顶点的一个积分公式。该公式来自此处解释的Ellingsrud-Göttsche-Lehn公式的PT版本。应用积分公式给出了单腿有帽PT顶点有后代的合理性的一个初等证明。我们还得到了一个积分公式的零度DT不变量的后裔。最后,我们提出了一个显式的非等变DT/PT对应以及一个后代插入全等变DT/PT公式。

英文摘要:

In this note we prove an integral formula for the bare one-leg PT vertex with descendents. The formula follows from the PT version of Ellingsrud-Göttsche-Lehn formula that is explained here. We apply the integral formula to obtain an elementary proof of rationality of one-leg capped PT vertex with descendents. We also obtain an integral formula for degree zero DT invariants with descendents. Finally we propose an explicit non-equivariant DT/PT correspondence as well as one descendent insertion fully-equivariant DT/PT formula.

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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