A-rated scientist by the National Research Foundation (NRF) from January 2020 (The NRF defines the A-category as follows: Researchers who are unequivocally recognised by their peers as leading international scholars in their field for the high quality and impact of their recent research outputs) ; Senior Associate (1 January 2000 - 31 December 2005), Abdus Salam International Centre for Theoretical Physics (ICTP), Trieste, Italy.
Regular Associate (1 January 1992 - 31 December 1999), Abdus Salam International Centre for Theoretical Physics (ICTP), Trieste, Italy.
National Research Foundation (South Africa) ratings: C3 (1997-2002)); C1 (2002-2007), B2 (2007-2013) and B2 (2013-2018)
Citation report (ISI Web of Science of 12 February 2016 reflecting citations to source items indexed within all databases): 254 citations (excluding self-citations); h-index: 12
Citation report (MathScinet of 12 February 2016): 270 citations by 163 authors
Convener of the NRF specialist Committee for Mathematical Sciences from 2008-2009
Outstanding Academic Achiever Award, University of Pretoriafor the following three consecutive periods: 1 January 2007 - 31 December 2009; 1 January 2010 - 31 December 2012 ; 1 January 2013 - 31 December 2015: 1 January 2016 - 31 December 2018 (link to page)
Fellow of the African Academy of Sciences (AAS) from 1 December 2009
Fellow of Die Suid- Afrikaanse Akademie vir Wetenskap en Kuns (The South African Academy of Science and Arts) from 4 February 2009
Fellow of the Academy of Science of South Africa (ASSAF) from October 2010
My postgraduate student, Mr A Terefe, received a prize for excellent masters’ presentation at the 53rd Annual Congress of the South African Mathematical Society, 3-5 November 2010, Pretoria
Laureate of the South African Mathematical Society (SAMS) Award for Research Distinction for 2011
Subject of biographical record in the Marquis Who’s Who in the World 29th Edition 2012
DST/NRF SARChI Chair in Mathematical Models and Methods in Bioengineering and Biosciences (from August 2013)
Award of the sign of honor for contribution to the Bulgarian Academy of Sciences on 19 June 2013.