The ICTP Prize in honour of Sigvard Eklund (Sweden), Director General Emeritus of the IAEA (International Atomic Energy Agency, Vienna, Austria), in the field of Mathematics, was awarded to Professor Emeritus Chike Obi, University of Lagos, Nigeria

for significant contributions in the study of nonlinear ordinary differential equations with several parameters for which he established numerous results on the existence, number and some analytical expressions of harmonic, subharmonic or uniformly almost periodic solutions.

The ICTP Prize for 1985 in honour of Sigvard Eklund