Abstract
This paper is a slightly revised version of the notes prepared in connection with the AMS Colloquium Lectures delivered in New Orleans, January 2001.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 409-433 |
| Number of pages | 25 |
| Journal | Bulletin of the American Mathematical Society |
| Volume | 38 |
| Issue number | 4 |
| DOIs | |
| State | Published - 2001 |
All Science Journal Classification (ASJC) codes
- General Mathematics
- Applied Mathematics