Presented by: 
Mark Bell, University of Warwick
Tue 15 Apr, 3:00 pm - 4:00 pm
Building 67, Room 442

In topology, many soft deformable objects also have rigid combinatorial descriptions. One such example is simple closed curves on a surface which can be described by a word in the surface's fundamental group. However, as the curves become more complicated so do the words and this makes them significantly harder to manipulate. We will discuss an alternate representation using triangulations which for many problems, such as determining the image of a loop under a homeomorphism, is  remarkably more efficient.