Simon K Donaldson, born 1957 in Cambridge, UK, is currently the Royal Society Research Professor of Pure Mathematics and President of the Institute for Mathematical Sciences at Imperial College, London, UK. He received his BA from Pembroke College, Cambridge in 1979 and his PhD from Oxford University in 1983. In 1986 he was elected as Fellow of the Royal Society.

Clifford H Taubes, born 1954 in Rochester, New York, USA, is currently the William Petschek Professor of Mathematics at Harvard University. He was an undergraduate at Cornell University and received his PhD in Physics from Harvard University in 1980. He is a member of the US National Academy of Sciences.

16 June 2009, Hong Kong