Special Session 75: Recent developments in Nonlinear PDEs, non-uniformly elliptic problems and related topics

New regularity estimates for fully nonlinear elliptic equations

Thialita Nascimento
University of Central Florida
USA
Co-Author(s):    Eduardo V. Teixeira
Abstract:
In this talk, we present new universal bounds for the Hessian integrability exponent of viscosity super-solutions of fully nonlinear, uniformly elliptic equations. Such estimates yield a quantitative improvement in the decay of this exponent with respect to the dimension. In particular, we solve, in the negative, the Armstrong-Silvestre-Smart Conjecture on the optimal exponent for the Hessian integrability. This is joint work with Eduardo Teixeira.