Mathematical Physics and Harmonic Analysis Seminar

Date: April 6, 2018

Time: 1:50PM - 2:50PM

Location: BLOC 628

Speaker: Oran Gannot, Northwestern University

Title: Semiclassical diffraction by conormal potential singularities

Abstract: I will describe joint work with Jared Wunsch on propagation of singularities for some semiclassical Schrödinger equations, where the potential is conormal to a hypersurface. Semiclassical singularities of a given strength propagate across the hypersurface up to a threshold depending on both the regularity of the potential and the singularities along certainbackwards broken bicharacteristics.