Orateur
M.
John Lott
Description
We give an infinite-dimensional description of the
differential K-theory of a manifold. The construction uses
superconnections on Hilbert bundles and eta forms. We
describe the pushforward of a finite-dimensional cycle under
a proper submersion with a Riemannian structure. Finally,
we give a model for twisted differential K-theory. This is
joint work with Alexander Gorokhovsky
