Málstofa: Herman Servatius
September 22, 11:40 Room N-130 Speaker: Herman Servatius (Worcester Polytechnic Institute) Title: Rigidity and movability of configurations in the projective plane. Abstract: Configurations of points and lines in the plane have a long history. The Theorem of Pappus from the fourth century begins a classical theory that has been advanced by Desargues, Pascal, Cayley, Steinitz, …