27 oct 2016 -- 14:30
Aula 211, Dip.Matematica, Università "Roma Tre", Roma
Abstract.
I will discuss first several equivalent definitions for a free curve in the complex projective plane. Then, by relaxing some of them, I'll introduce the notion of a nearly free curve. Finally I'll discuss the conjecture saying that a rational cuspidal plane curve is either free or nearly free.