What Columbia University professor proved the Earle-Hamilton fixed-point theorem with Clifford Earle in 1968?
Richard S. Hamilton Richard Streit Hamilton (born 1943) is Davies Professor of Mathematics at Columbia University.
Chiu-Chu Melissa Liu Chiu-Chu Melissa Liu (; born December 15, 1974) is a Taiwanese mathematician who works as a professor of mathematics at Columbia University. Her research interests include algebraic geometry and symplectic geometry.