# 2003

### Number theory

- Lecture
- Daniel Shapiro
- Seminars
- Susan Goldstine, Warren Sinnott, Alice Silverberg

### Algebra Seminar

Inna Korchagina

### Advanced courses

- Ergodic Theory, Cantor sets, etc.
- Vitaly Bergelson

### Short courses

- Non-unique factorization in quadratic extensions of Z
- Robert Pollack
- Elliptic curves
- Karl Rubin
- Analogies between Z and F[T]
- Keith Conrad
- Ordinals
- Jacob Lurie

### Special lectures

Raymond Pierrehumbert, David Leep