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arXiv 2004.06696math.AP
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具有多面体和Y形奇点的蒙日-安培方程的解

Solutions to the Monge-Ampère equation with polyhedral and Y-shaped singularities

Connor Mooney

摘要:

我们构造了$\mathbb{R}^3$和$\mathbb{R}^4$上的凸函数,它们是蒙日-安培方程的光滑解$\det D^2u = 1$远离紧的一维奇异集,这些奇异集可以是Y形的或形成凸多胞体的边.这些例子在Alexandrov意义上解决了方程,远离了许多点。我们的方法是基于解决的障碍问题的图形的障碍是一个凸多胞体。

英文摘要:

We construct convex functions on $\mathbb{R}^3$ and $\mathbb{R}^4$ that are smooth solutions to the Monge-Ampère equation $\det D^2u = 1$ away from compact one-dimensional singular sets, which can be Y-shaped or form the edges of a convex polytope. The examples solve the equation in the Alexandrov sense away from finitely many points. Our approach is based on solving an obstacle problem where the graph of the obstacle is a convex polytope.

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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