Demetrios Christodoulou was born in 1951 in Athens, Greece.  He is currently Professor of Mathematics and Physics at the ETH, Zurich in Switzerland.  He received his MA in Physics in 1970 and PhD in Physics in 1971 from Princeton University. He was Professor of Mathematics at Syracuse University (1985 – 1987), the Courant Institute (1988 – 1992) and the Princeton University (1992 – 2001). He is a member of the American Academy of Arts and Sciences and European Academy of Sciences.

Richard S Hamilton was born in 1943 in Ohio, USA. He is currently Davies Professor of Mathematics at the Columbia University, USA.  He received his BA in 1963 from Yale University and PhD in 1966 from Princeton University.  He has held positions at UC Irvine, UC San Diego and Cornell University. He is a member of the United States National Academy of Sciences and the American Academy of Arts and Sciences.

7 June 2011  Hong Kong