arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2108.02157math.AGmath.AC
收藏

光滑簇族的无穷小变差函数

Infinitesimal variation functions for families of smooth varieties

Filippo Francesco Favale, Gian Pietro Pirola

摘要:

本文对一类光滑射影复曲线引入了与Hodge结构的无穷小变分的秩有关的{ \it变分函数}。给出了一些界和不等式,特别证明了:若$X$是光滑平面曲线$X$,则存在使$X$变形为平面曲线的一阶变形$ξ\in H^1(T_X)$,使得$ξ\cdot:H^0(ω_X)\to H^1(\mathcal{O}_{X})$是同构.我们还推广的概念变差函数的高维情况下,我们分析IVHS和弱和强Lefschetz性质的雅可比环的光滑超曲面之间的联系。

英文摘要:

In this paper we introduce some {\it variation functions} associated to the rank of the Infinitesimal Variations of Hodge Structure for a family of smooth projective complex curves. We give some bounds and inequalities and, in particular, we prove that if $X$ is a smooth plane curve $X$, then there exists a first order deformation $ξ\in H^1(T_X)$ which deforms $X$ as plane curve, such that $ξ\cdot:H^0(ω_X)\to H^1(\mathcal{O}_{X})$ is an isomorphism. We also generalize the notions of variation functions to the higher dimensional case and we analyze the link between IVHS and the Weak and Strong Lefschetz properties of the Jacobian ring of a smooth hypersurface.

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。

↑