Geometric analysis seminar: On Hessian integrability estimates for fully nonlinear equations

CATEGORIES: Department, Math, Seminar
April 17, 2023, 11:00am-12:00pm | Carver 401 and Zoom

Speaker: Thialita M. Nascimento from University of Central Florida


Abstract: In this talk, we will discuss new universal bounds for the exponent of Hessian integrability of viscosity supersolutions of fully nonlinear and uniformly elliptic equations, by means of geometric and measure theoretic arguments.  Such estimates produce a quantitative improvement in the decay of this exponent with respect to dimension. In particular, we solve, in the negative, the Armstrong-Silvestre-Smart Conjecture about the optimal exponent for the Hessian integrability. This is a joint work with Prof. Eduardo Teixeira (UCF-USA).