## NSF/CBMS Regional Conference in the Mathematical Sciences:

*Topology, C*-algebras, and String Duality*

## Principal Lecturer: Jonathan Rosenberg

## at Texas Christian University

## May 18-22, 2009

(Opening reception on the evening of May 17)

Link to notes for Prof. Rosenberg's book (password required).
In addition to Prof. Rosenberg, to date the following plan to attend and to speak:

- Matt Ando
- Paul Baum
- Jonathan Block
- Peter Bouwknegt
- Alan Carey
- Jacques Distler
- Chuck Doran
- Dan Freed
- Nigel Higson
- Sooran Kang
- Marc Rieffel
- Hisham Sati
- Claude Schochet
- Eric Sharpe
- Mathai Varghese
- Dana Williams

### Organizers:

Robert Doran (r.doran at tcu.edu)

Greg Friedman (g.friedman at tcu.edu)
The theme of this CBMS conference is Topology, C*-algebras, and String Duality. The principal speaker will be Professor Jonathan Rosenberg of the University of Maryland.

Some of the most exciting current research in geometry and topology has been motivated by problems in mathematical physics in general, and string
theory in particular. Physicists are still divided concerning the usefulness of string theory as
a ``unified field theory,'' uniting our understanding of all the
fundamental forces of nature.
However, even if string theory should turn out not to be fully confirmed by
experiment, the fascinating and beautiful mathematics it has generated is expected to retain its
mathematical value.

The subject of the conference will involve a number of such ``spin-offs''
of string theory into pure mathematics, and the way they connect
with other topics in topology and operator algebras that were initially
developed for other purposes. The conference will focus
largely on the rich interaction between these and other important concepts of
current interest. Topics from pure
mathematics will include K-theory and
twisted K-theory, continuous-trace algebras and the Dixmier-Douady
invariant, crossed product C*-algebras and their K-theory, bundles, and
homotopy theory. The lecturer will develop parts of these subjects
in their own right, as well as discussing their relevance to the very
active current research in mathematical physics concerning dualities
between various string theories, especially T-duality and S-duality.

A detailed abstract of Prof. Rosenberg's Lectures can be found here.

The Conference is supported by the National Science Foundation via NSF grant 0735233

Please send comments about this web site to Greg Friedman - g.friedman at tcu.edu.