Seminars and Talks 10:30 - 12:00, August 17, 2019 (Saturday) Auditorium, 6F, Astronomy-Mathematics Building, NTU Local and Quasi-local Results for Manifolds of Non-negative Scalar Curvature 14:00 - 15:30, August 17, 2019 (Saturday) Auditorium, 6F, Astronomy-Mathematics Building, NTU Geometric Flows with Surgery for 2-convex Hypersurfaces