John Lind, Reed
3:40 PM - 4:40 PM
T-duality arose as an agreement between the predictions of different versions of string theory. There is an underlying topological agreement as well, which can be expressed as an isomorphism between the twisted K-theory of certain circle bundles. I will carefully explain this through examples, and then I will discuss my work with Westerland and Sati on T-duality for more general sorts of fiber bundles. In particular, I will describe the universal T-duality theory for sphere bundles of a fixed rank and its relationship with iterated algebraic K-theory.
Event contact: carl dot mctague at rochester dot edu