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arXiv 2406.12166math.AG
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映射多奇点轨迹的通用多项式

Universal polynomials for multi-singularity loci of maps

Toru Ohmoto

AI总结:

本文证明了映射多奇点类型的Thom多项式的存在性,解决了长期未决的Thom-Kazarian原理,夯实了映射奇点计数理论基础,可应用于代数几何问题,证明运用了代数几何上同调运算,还关联到代数配边与动机上同调。

摘要:

本文证明了通用多项式的存在性,这类多项式可表达特征为零的代数闭域上光滑概形之间的真态射的指定类型多奇点轨迹类——我们将其称为映射多奇点类型的Thom多项式。这一结论曾被称为Thom-Kazarian原理,且长期悬而未决。该结果夯实了映射奇点一般计数理论的基础,该理论可应用于经典与现代代数几何中的广泛问题。具体而言,它将有助于为(高级形式的)希尔伯特第15问题的剩余部分提供令人满意的答案,并将这些经典问题与数学物理等领域启发的计数研究新热点相关联。我们证明的一个主要特点是巧妙运用了代数几何上同调运算。颇令人意外的是,当试图全面把握经典计数几何时,我们会不可避免地涉及代数配边理论与动机上同调。

英文摘要:

In the present paper, we prove the existence of universal polynomials which express multi-singularity loci classes of prescribed types for proper morphisms between smooth schemes over an algebraically closed field of characteristic zero -- we call them Thom polynomials for multi-singularity types of maps. It has been referred to as the Thom-Kazarian principle and unsolved for a long time. This result solidifies the foundation for a general enumerative theory of singularities of maps which is applicable to a broad range of problems in classical and modern algebraic geometry. In particular, it would contribute to a satisfactory answer to the rest of (an advanced form of) Hilbert's 15th problem and connect such classics to recent new interests in enumerations inspired by mathematical physics and other fields. A main feature of our proof is a striking use of algebro-geometric cohomology operations. Somewhat surprisingly, when trying to grasp a full perspective of classical enumerative geometry, we will inevitably encounter algebraic cobordism and motivic cohomology.

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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