对一类Monge-Ampère方程的特征值问题进行了研究.通过移动平面法证明了在凸对称区域内,Dirichlet问题的C^2凹(凸)解一定是对称的.进而通过对常微分方程和椭圆形偏微分方程的讨论,得到一类n维单位球上特征值问题的非平凡解的存在性和正则性结果.
This paper mainly focuses on a kind of eigenvalue problems of the Monge-Ampère equation. By meas of the moving plane method in the study of second-order elliptic equation, the author proves that the symmetry of the convex domain to this problem implies the symmetry of every C^2 convex (or concave) solution to the Dirichlet problem. Through the study of an ODE linked to our main problem, the existence and regularity of the eigenvalue problem is also obtained.