## Speaker:

Professor Yongbin Ruan

## Institution:

Univ. of Wisconsin, Madison

## Time:

Friday, November 12, 2004 - 3:00pm

## Location:

MSTB 254

In this talk, I will give a survey on

some of recent advances in orbifold theory and focus

on the application. It includes the computation for

cohomology of Hilbert scheme of points of algebraic surface,

symplectic resolution, twisted K-theory and many other stuff.