broadcast in Room 515, Cosmology Bldg., NTU, Online seminar
(線上演講 於台大次震宇宙館515教室直播/收播)
Around Three and a Half Worlds in Zero Days - On the Curvature Cost of Short World Trips
Christian Scharrer (University of Bonn)
Abstract
Given a closed surface embedded into Euclidean space, its Willmore energy is defined as the integrated squared mean curvature. I'll present a sharp inequality that bounds the length of the shortest closed geodesic from below provided the surface has Willmore energy less than the energy of three and a half unit spheres.
Meeting number (access code): 2519 724 0884
Meeting password: guEFpbRU727