Saturday Schedule 10:30 - 11:00 AM Coffee and assorted danish 11:00 - 12:00 PM Gunther Uhlmann, University of Washington Boundary rigidity and the Dirichlet-to-Neumann map 1:30 - 2:30 PM Chuu-Lian Terng, UCI & Northeastern University Periodic and homoclinic orbits of the modified 2+1 chiral model 2:45 - 3:45 PM Oded Schramm, Microsoft Research Conformally invariant random processes in two dimensions 3:45 - 4:15 PM Coffee break 4:15 - 5:15 PM Michael Lacey, Georgia Tech Hilbert transforms and smooth families of lines