Seminars & Colloquia Calendar
The space of geodesic triangulations on surfaces
Yanwen Luo (Rutgers)
Location: zoom link: https://rutgers.zoom.us/j/96839448491?pwd=NHNWcVFKTWpkRDZWcVVhVm9mYTNGUT09
Date & time: Tuesday, 15 September 2020 at 3:50PM - 4:50PM
In 1959, Smale showed that the group of diffeomorphisms of the closed 2-disk which are identity on the boundary is a contractible space. In 1984, Bloch, Connelly, and Henderson proved the discrete version of this theorem: the space of simplexwise linear homeomorphisms of a convex polygon is contractible.