## Geometry Seminar - Abstracts

### Talk

13 May 2016, 09:30 - 10:30, in HG00.310

**Daniel Huybrechts**
(Universität Bonn)

*Torelli Theorems for K3 surfaces and cubic fourfolds*

### Abstract

For many interesting types of varieties the Hodge structure
determines the variety. Results of this type are called
Torelli theorems. The classical examples include
curves and abelian varieties. After discussing the
Torelli theorem for a few classes, I will outline an approach
to the Global Torelli theorem for cubic hypersurfaces
of dimension four that uses K3 surfaces, derived categories and
matrix factorizations.

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