## Department of Mathematics

Indian Institute Of Technology Madras , Chennai

### Chen-Ruan Cohomology for Orbifolds

#### Abstract :

In this series of talks we learn A New Cohomology Theory of Orbifold" which was introduced by Weimin Chen and Yongbin Ruan. In the first talk we quickly recall the idea of orbifold. Then we discuss the concept of orbifold bundle as well as tangent bundle and cotangent bundle of orbifold.

Key Speaker Subhankar Sau, Research Scholar, Department of Mathematics IITM
Place NAC 503
Start Time 11:00 AM
Finish Time 11:50 AM