## Department of Mathematics

Indian Institute Of Technology Madras , Chennai

### Equivariant cohomology of torus orbifolds

#### Abstract :

We calculate the integral equivariant cohomology, in terms of generators and relations, of locally standard torus orbifolds whose odd degree ordinary cohomology vanishes. We begin by studying GKM-orbifolds, which are more general, before specializing to half-dimensional torus actions. This is a joint work with Shintaro Kuroki and Alastair Darby.

Key Speaker Dr. Jongbaek Song (Department of Mathematical Sciences, Korea Advanced Institute of Science and Technology)
Place NAC 522
Start Time 3:00 PM
Finish Time 4:00 PM