Friezes and friends - Foredrag med Sira Helena Gratz

Vi afholder foredrag den 16. november kl 16.30 i Aud D1. Det bliver Sira Helena Gratz som holder foredrag, og hun kommer til at snakke om:
We see how the “pentagramma mirificum’’—-a beautiful shape known for its symmetries already by Napier more than 400 years ago and studied extensively by Gauss—-inspires the introduction of friezes, which remain objects of interest in state-of-the-art mathematical research. We show an astonishing connection between friezes and triangulations of polygons, which can both be counted by the somewhat magical Catalan number.
Kom glad, der er gratis kaffe og kage :-)