# Fields Medals and Nevanlinna Prize 1982

## Fields Medals

born April 1, 1947, Darguignan, France

Institut des Hautes Études Scientifiques

Contributed to the theory of operator algebras, particularly the general classification and structure theorem of factors of type III, classification of automorphisms of the hyperfinite factor, classification of injective factors, and applications of the theory of C*-algebras to foliations and differential geometry in general.

##

born October 30, 1946, Washington, D.C.

Princeton University

Revolutionized study of topology in 2 and 3 dimensions, showing interplay between analysis, topology, and geometry. Contributed idea that a very large class of closed 3-manifolds carry a hyperbolic structure.

##

born April 4, 1949, Kwuntung, China

Institute for Advanced Study

Made contributions in differential equations, also to the Calabi conjecture in algebraic geometry, to the positive mass conjecture of general relativity theory, and to real and complex Monge-Ampère equations.

received the first Nevanlinna Prize for outstanding contributions to mathematical aspects of information science. "Pure mathematics enjoys the luxury of studying its constructions, whether finite or infinite, in complete independence of all questions of efficiency." explained Jacob Schwartz, who spoke on Tarjan's work. "By contrast, theoretical computer science must ultimately concern itself with computing engines which operate with limited speed and data storage, and therefore must take efficiency as one of its central concerns. Two closely related activities, algorithm design and algorithm analysis, grow out of this inevitable concern."

The awards were announced in 1982 even though the Warsaw Congress was not held until 1983.

This document has been reproduced from

Albers, Donald J.; Alexanderson, G. L.; Reid, Constance:

*International mathematical congresses. An illustrated history 1893 - 1986*

Rev. ed. including ICM 1986. Springer-Verlag, New York, 1986

with friendly permission from Springer Verlag