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arXiv 2607.25861math.AG

$\mathbb{Q}$-同调流形的霍奇理论推广II:局部完全交

A Hodge Theoretic Generalization of $\mathbb{Q}$-Homology Manifolds II: Local Complete Intersections

Bradley Dirks, Sebastian Olano, Debaditya Raychaudhury

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中文总结 AI 辅助

研究复代数簇$Z$的奇点不变量$\HRH(Z)$,聚焦局部完全交子簇,将其与伯恩斯坦 - 佐藤多项式等著名不变量联系,超曲面情形可由这些不变量完全刻画$\HRH(Z)$,高余维情形更复杂。

中文摘要 AI 辅助

最近,作者引入并研究了复代数簇$Z$的一个奇点不变量,记为$\HRH(Z)$(用于“霍奇有理同调”流形层面)。本文聚焦于局部完全交子簇,将$\HRH(Z)$与各种著名不变量联系起来,如伯恩斯坦 - 佐藤多项式和迪姆卡 - 迈松诺贝 - 斋藤谱。在超曲面情形下,$\HRH(Z)$可由这些不变量完全刻画,高余维情形则更微妙。

英文摘要

Recently, the authors introduced and studied a singularity invariant of a complex algebraic variety $Z$, written $\HRH(Z)$ (for ``Hodge rational homology'' manifold level). In this paper, we focus on local complete intersection subvarieties. We relate $\HRH(Z)$ to various well-known invariants, like Bernstein--Sato polynomials and the Dimca-Maisonobe-Saito spectrum. In the hypersurface case it turns out that $\HRH(Z)$ can be completely characterized by these invariants, though higher codimension case is more subtle.

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