Seminars & Colloquia Calendar
Closed hypersurfaces of low entropy in four-dimensional Euclidean space are isotopically trivial
Lu Wang (Caltech University)
Date & time: Tuesday, 27 April 2021 at 2:50PM - 3:50PM
Abstract: I will show that any closed connected hypersurface in four-dimensional Euclidean space with entropy less than or equal to that of the round cylinder is smoothly isotopic to the standard three-sphere. This is joint work with Jacob Bernstein.