The Anisotropic Convexity of Domains and the Boundary Estimate for Two Monge-Amp\`ere Equations

Abstract

We study the exact effect of the anisotropic convexity of domains on the boundary estimate for two Monge-Amp\`ere Equations: one is singular which is from the proper affine hyperspheres with constant mean curvature; the other is degenerate which is from the Monge-Amp\`ere eigenvalue problem. As a result, we obtain the sharp boundary boundary estimates and the optimal global H\"older regularity for the two equations