This week's Minerva Distinguished Visitor Lecture: Andrei Okounkov - Nakajima Varieties

This week's Minerva Distinguished Visitor Lecture will be Friday afternoon from 4:30 p.m. to 6:00 p.m. in room 214. Videos of this years previous Minerva Disitinguished Video Lectures can be found at: varieties
Nakajima varieties are very remarkable algebraic symplectic varieties
that can be associated to an arbitrary multigraph (which later in the
theory plays the role of the Dynkin diagram of a certain Lie algebra).
They include, for example, cotangent bundles of partial flag varieties,
as well as Hilbert schemes of points and more general moduli spaces
of sheaves on ADE surfaces. This talk will be an introduction to
the subject.