中科院数学与系统科学研究院

数学研究所

学术报告

偏微分方程研讨班

 

报告人Prof. Connor MooneyUniversity of California Irvine   

 Some regularity questions for the special Lagrangian equation

  2022.06.01(星期三)上午9:00-10:00

 点:Zoom Meeting: 563 133 4105  Code: 20220601

  要:The special Lagrangian equation is a fully nonlinear elliptic PDE whose solutions are potentials for volume-minimizing Lagrangian graphs. There exist continuous viscosity solutions to the Dirichlet problem for this equation, but many basic regularity questions (such as whether these solutions have bounded gradient) remain open. In this talk we will discuss some of these questions. We will use them to motivate the more general question of whether homogeneous functions with nowhere vanishing Hessian determinant can change sign when the degree of homogeneity is between zero and one, and we will answer this question in the negative.

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