1986 Fields Medal (1)

Reason for Award

Received medal primarily for his work ontopologyof four-manifolds, especially for showing that there is a differential structure on euclidian four-space which is different from the usual structure.

Laureates

Simon K. Donaldson,

United Kingdom of Great Britain and Northern Ireland

Other works in the same year

Using methods ofarithmetic algebraic geometry, he received medal primarily for his proof of theMordell Conjecture.
Developed new methods for topological analysis of four-manifolds. One of his results is a proof of the four-dimensionalPoincaré Conjecture.

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