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arXiv 2005.04378math.AGmath-phmath.GTmath.MP
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计数几何 via 超黎曼面的模空间

Enumerative geometry via the moduli space of super Riemann surfaces

School of Mathematics and Statistics, University of Melbourne(墨尔本大学数学与统计学院)

Paul Norbury

AI总结:

本文通过代数几何方法证明超黎曼面模空间体积递推关系等价于KdV tau函数,类比Mirzakhani的Kontsevich-Witten定理证明方法。

摘要:

在本文中,我们将超黎曼面的模空间的体积与稳定黎曼面的模空间$\overline{\cal M}_{g,n}$上的积分联系起来。这使我们能够通过代数几何的方法证明超超几何面的模空间体积之间的递推关系,该关系此前由Stanford和Witten通过超几何技术证明。超超几何面的模空间体积之间的递推关系被证明等价于一个生成函数,该生成函数表示自然凝聚类别$Θ_{g,n}$与$\overline{\cal M}_{g,n}$上拓扑学类的交数的交数生成函数是一个KdV tau函数。这类似于Mirzakhani利用超几何面的模空间体积证明Kontsevich-Witten定理的证明方法,该定理涉及$\overline{\cal M}_{g,n}$上拓扑学类的交数生成函数。

英文摘要:

In this paper we relate volumes of moduli spaces of super Riemann surfaces to integrals over the moduli space of stable Riemann surfaces $\overline{\cal M}_{g,n}$. This allows us to prove via algebraic geometry a recursion between the volumes of moduli spaces of super hyperbolic surfaces previously proven via super geometry techniques by Stanford and Witten. The recursion between the volumes of moduli spaces of super hyperbolic surfaces is proven to be equivalent to the fact that a generating function for the intersection numbers of a natural collection of cohomology classes $Θ_{g,n}$ with tautological classes on $\overline{\cal M}_{g,n}$ is a KdV tau function. This is analogous to Mirzakhani's proof of the Kontsevich-Witten theorem regarding a generating function for the intersection numbers of tautological classes on $\overline{\cal M}_{g,n}$ using volumes of moduli spaces of hyperbolic surfaces.

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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