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arXiv 2111.04532math.DGmath.AP
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仿射空间中具有Li-规范化的常Gauss-Kronecker曲率超曲面

Hypersurfaces of constant Gauss-Kronecker curvature with Li-normalization in affine space

Xin Nie, Andrea Seppi

AI总结:

本文通过研究带梯度爆破边界条件的Monge-Ampère方程,证明了仿射空间中正则域被相对于Li-规范化的常Gauss-Kronecker曲率完备凸超曲面叶状化,并推广了$α=1$情形。

摘要:

对于仿射空间$\mathbb{A}^{n+1}$($n\geq2$)中的凸超曲面,A.-M. Li引入了$α$-正规场的概念,作为仿射正规场的推广。通过研究带有梯度爆破边界条件的Monge-Ampère方程,我们证明了$\mathbb{A}^{n+1}$中的正则域(相对于真凸锥定义,且当$n\geq3$时满足某些正则性假设)被相对于Li-规范化的具有常Gauss-Kronecker曲率的完备凸超曲面叶状化。当$n=2$时,一个关键特征是不需要正则性假设,且该结果扩展了我们最近关于$α=1$情形的工作。

英文摘要:

For convex hypersurfaces in the affine space $\mathbb{A}^{n+1}$ ($n\geq2$), A.-M.\ Li introduced the notion of $α$-normal field as a generalization of the affine normal field. By studying a Monge-Ampère equation with gradient blowup boundary condition, we show that regular domains in $\mathbb{A}^{n+1}$, defined with respect to a proper convex cone and satisfying some regularity assumption if $n\geq3$, are foliated by complete convex hypersurfaces with constant Gauss-Kronecker curvature relative to the Li-normalization. When $n=2$, a key feature is that no regularity assumption is required, and the result extends our recent work about the $α=1$ case.

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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