##### Department of Mathematics,

University of California San Diego

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### Analysis Seminar

## Chong-Kyu Han

#### Seoul National University

## Reduction of Pfaffian systems and conservation laws

##### Abstract:

\indent Given a Pfaffian system on a smooth manifold, we shall discuss the notion of reduced submanifold and how to find them. This was motivated from the problem of deciding the minimality of generic CR manifolds. As best known by the Noether's theorem conservation laws arise from the symmetry of differential equations. We approach the conservation laws from the viewpoint of the reduction of Pfaffian systems and discuss some possible applications.

### November 30, 2011

### 10:00 AM

### AP&M 5829

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