### Speaker: Gunther Uhlmann

### University of Washington

### Date: Tuesday, October 6, 2022 at 2 p.m. Santiago time

**Abstract:** In inverse scattering ione attempts to find the properties of a medium

by making remote observations. It has applications in physics,

geophysics, medical imaging, non-destructive evaluation of materials.

Radar and sonar are examples of inverse scattering methods that are

used routinely nowadays. In this case we consider the inverse problem

of determining the nonlinearity for critical semilinear wave

equations. This is joint work with A, Sa Barreto and Y. Wang.

**Venue:** Online via Zoom / Sala de seminarios John Von Neumann, 7th floor, Beauchef 851

**Chair:** Claudio Muñoz