AbstractKerr-de Sitter spacetimes is a family of slowly rotating black holes with positive cosmological constant. They are parameterized by their mass and angular momentum. We discuss propagation of singularities of wave equations on Kerr-de Sitter spacetimes. We construct a new pseudodifferential operator algebra using blow up and prove a propagation estimate improving the result of Hintz. The...
Speaker: Hugh WoodinW. Hugh Woodin is a Distinguished Professor Emeritus of Mathematics at the University of California, Berkeley and a Professor of Philosophy and of Mathematics at Harvard University. Woodin is a leading set theorist. He has made many notable contributions to the theory of inner models and determinacy, to functional analysis, and recursion theory. A type of large cardinal, the...