16 feb 2017 -- 14:30
Aula 211, Dip.Matematica, Università "Roma Tre", Roma
Abstract.
I will discuss the problem of classification of finite complete families of incident planes in P5. First i will present a construction of a complete family of incident planes of maximal cardinality 20 (a joint work with M.Donten-Bury, B.van Geemen, M.Kapustka, J. Wisniewski). Then show that the Morin problem is equivalent to the problem of classification of nodal (2,2) divisors in P2xP2. The methods consist of studying projective models of special hyper-Kaehler fourfolds.