Professor Charles Ejike Chidume, Acting President, Director of Mathematics Institute and Head, Department of Pure and Applied Mathematics of AUST, has won the 2019 prize for the above international award. The notice of the award was first communicated to Professor Chidume on the 4th of December, on behalf of the Award Committee, by Professor Herbert Clemens of The Ohio State University, Chair of the Committee. The public announcement of the award and the award citation was posted online by Professor Wandera Ogana, President of AMMSI, on the AMMSI website, the International Mathematical Union/Commission for Developing Countries website and the Science Initiatives Group website on the 12th of December, 2019.
The Award Citation stressed that Professor Chidume’s work encompasses several fields, including Nonlinear Functional Analysis, Nonlinear Operator Theory, and Differential Equations; in particular, his research focuses on the area of fixed point theory where his contributions have become indispensable”. Professor Chidume’s proof that the Mann sequence for non-expansive maps is uniformly asymptotically regular in any real normed space provided the domain of the map is bounded, hence resolving a problem which had been open since 1978. He also produced an example to show that the Mann iteration sequence will not always converge strongly to a fixed point of a Lipschitz pseudo-contractive map, thereby resolving an open problem in the field for several decades. He authored or co-authored over 183 research papers and his works have been extensively cited.
Professor Chidume has received multiple prestigious awards, including the British Council Fellowship in Mathematics (1986), the Third World Academy of Sciences (1988), the Honor Certiﬁcate by the Romanian Mathematical Society (2018). He has played a key role in discovering and developing young mathematicians in Africa through the supervision of many postgraduate students at the International Center for Theoretical Physics (ICTP) in Trieste, Italy, the University of Nigeria, Nsukka and the African University of Science and Technology, Abuja. He has served as an Associate Editor of numerous scientific journals and is a Fellow of The World Academy of Sciences (FTWAS), among others.