IPMU Komaba Seminar

Speaker: Misha Verbitsky (ITEP Moscow/IPMU)
Title: Mapping class group for hyperkaehler manifolds
Date: Mon, Jul 27, 2009, 17:00 - 18:30
Place: Room 002, Mathematical Sciences Building, Komaba Campus
Abstract: A mapping class group is a group of orientation-preserving diffeomorphisms up to isotopy. I explain how to compute a mapping class group of a hyperkaehler manifold. It is commensurable to an arithmetic lattice in a Lie group SO(n-3,3). This makes it possible to state and prove a new version of Torelli theorem.