## Topology & Geometric Group Theory Seminar

## Spring 2008

### 1:30 - 2:30, Malott 207

Tuesday, April 1

**Tomoo
Matsumura**, Max Planck Institute (soon to be at Cornell)

*The stringy cohomology of symmetric product of an orbifold*

In this talk I will describe the stringy cohomology of symmetric
product of a wreath product orbifold and explain Ruan's hyperKahler
resolution conjecture. I will mention the two ongoing projects
related to the above result: one to generalize the stringy cohomology
for an orbifold with a finite group action and the other to construct
a model for quantum stringy cohomology.

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