Presentation of master's thesis

I will do a presentation of my thesis tomorrow, tuesday. This is the first time I'm doing a presentation with a projector instead of a blackboard, so I'm spending most time dealing with the (very nice) beamer class for . Feel free to come by and have a listen! From the seminar page:

=== DFG Research Group "Polyhedral Surfaces" ===

Tuesday, 08.05.07, at 16:15 in MA 850

Kristoffer Josefsson (TU Berlin)

The four vertex theorem for polygons

Abstract:
We look at a discrete notion of curvature for polygons in the plane, inspired by the correspondence of curvature and the radius of osculating circles in the smooth case. A purely geometric proof shows that under mild extra conditions, every simple closed polygon has two local minima and two local maxima of its curvature function.

Web-page of the seminar:
http://www.math.tu-berlin.de/geometrie/ps/seminar.shtml