Ramanujan Auditorium, IMSc, Chennai Monday 01st July 2013 1200 -- 1300 Mahan Mj "Shapes and geometry of surfaces" chair: Parameswaran Sankaran medium: projector Abstract: Almost all shapes that we see around in space are examples of surfaces. We shall describe a method dating back to the 19th century of understanding these. We shall begin by trying to answer the following question: What is the domain of applicability of calculus? Time-permitting, we shall describe more sophisticated geometric structures on surfaces.