Recovery of the nonlinearity from the modified scattering map

Dr. Gong Chen
2024-07-16 14:00-15:00
MCM110

Speaker: Dr. Gong Chen (The Georgia Institute of Technology)
Time: 14:00-15:00  July 16, 2024 (Tuesday)
Venue: MCM110
Title: Recovery of the nonlinearity from the modified scattering map
Abstract: We consider the problem of recovering the nonlinearity in a nonlinear Schrödinger equation from scattering data, a problem for which there is a relatively large literature. We consider a new situation in which the equation does not admit standard scattering, but instead features the modified scattering behavior with logarithmic phase correction. We prove that even in this case, the modified scattering data suffices to determine the unknown nonlinearity. This is a joint work with J. Murphy (Oregon).