… ABDON ATANGANA is Professor of Applied Mathematics at the University of the Free State (UFS), Bloemfontein, Republic of South Africa. He obtained his honours and master degrees from the Department of Applied Mathematics at the UFS with distinction. He obtained his Ph.D. in applied mathematics from the Institute for Groundwater Studies, UFS, Republic of South Africa. He serves as Editor of many international journals, Guest Editor of many journals, and is a reviewer of more than 200 international accredited journals. He has published more than 270 research papers in international accredited journals of applied mathematics, applied physics, geo-hydrology and biomathematics. A single author of four books, including
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