Algebraic and geometric intersection numbers for free groups
Starts 14 Feb 2012 14:30
Ends 14 Feb 2012 20:00
Central European Time
Leonardo da Vinci Building Luigi Stasi Seminar Room
Strada Costiera, 11
I - 34151 Trieste (Italy)
We shall discuss Scott-Swarup intersection number for the splittings of a free group of rank n and the geometric intersection number for the embedded spheres in a 3-manifold with fundamental group a free group of rank n. We shall show that these intersection numbers coincide.