Special Session 119: PDEs and Variational Problems in Physical and Biological Sciences

A Priori Estimates for Fully Nonlinear Equations
Guohuan Qiu
Academy of Mathematics and Systems Science
Peoples Rep of China
Co-Author(s):    
Abstract:
This presentation introduces some progress in the interior regularity theory of fully nonlinear equations. For the equation of positive scalar curvature (also known as the 2-Hessian equation), we completely resolve the interior second-order derivative estimates in the three-dimensional case and for convex solutions. In higher dimensions, for the special Lagrangian curvature equation, we establish a priori interior curvature estimates in both the critical phase case and the convex case.