Michael H.
Freedman
Professor of Mathematics
University of California, San Diego
1987
Mathematics
For his proof of the Poincare Conjecture in dimension four: a toplogical four-manifold is homeomorphic to S4[4th power] it it is homotopy equivalent to S4 [4th power], one of the greatest achievemnets in mathematics in this century.
Presented by President Reagan at a White House Ceremony on June 25, 1987.