Djairo Figueiredo (Unicamp, Brasil)
"Nonlinear elliptic systems"

F. Cucker (Hong Kong, China)
"Complexity, numerical analysis, and algebraic topology"

J. Spencer (NYU, U.S.A.)
"Random structures and Erdos magic"

J. Ch. Yoccoz (Collège de France, Francia)
"Non uniformly hyperbolic horseshoes"

B. Teissier (Paris - Jussieu, Francia)
"Local polar varieties in the geometric study of singularities"

M. Talagrand (Paris - Jussieu, Francia)
"Upper and lower bounds for stochastic processes"

G. Segal (Oxford, U.K.)
"Quantum field  theory"