##### Department of Mathematics,

University of California San Diego

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### Symplectic Geometry Seminar

## Justin Roberts

#### UCSD

## Characteristic classes of flat symplectic bundles

##### Abstract:

I'll explain Kontsevich's approach, using Gelfand-Fuchs cohomology, to constructing characteristic classes of flat symplectic bundles. This can be used to talk about Rozansky-Witten invariants of holomorphic symplectic manifolds and construct cohomology classes on the moduli space of curves.

Organizer: Alvaro Pelayo

### February 5, 2016

### 3:00 PM

### AP&M 6402

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