https://www.math.purdue.edu/~sabarre/
Thu, April 15, 2021, 9:00-10:00 am PDT via Zoom
Title: Inverse Scattering for Critical Semilinear Wave Equations.
Abstract: We show that the scattering operator for defocusing energy critical semilinear wave equations $\square u+f(u)=0,$ $f\in C^\infty(\mr)$ and $f\sim u^5,$ in three space dimensions, determines $f$. This is joint work with Gunther Uhlmann and Yiran Wang.