Welcome to my Cambridge webpages!
I am the Lowndean Professor of Astronomy and Geometry at the University of Cambridge in the Department of Pure Mathematics and Mathematical Statistics (DPMMS).
I am also a member of the Relativity and Gravitation Group of DAMTP, the Centre for Theoretical Cosmology, the Cambridge Centre for Analysis and the "General Relativity and Analysis at Princeton" Center.
Click here for my Princeton webpage.