##### Department of Mathematics,

University of California San Diego

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### Differential Geometry Seminar

## Chikako Mese

#### Johns Hopkins University

## Geometric superrigidity and harmonic maps

##### Abstract:

We discuss rank one and higher rank superrigidity for the isometry groups of a class of complexes which includes hyperbolic buildings as a special case. Our method uses harmonic maps to singular spaces.

Host: Lei Ni

### January 6, 2010

### 3:00 PM

### AP&M 7321

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