Keynote addresses 

1.       Lubuma, J.M.-S. 2000. Singularities in some models of physics and mechanics, (Keynote address at the 3rd Hanno Rund Conference on Differential Equations and Applications held in Durban, 13-16 September 2000), In: Banasiak, J (Ed), Proceedings of the Conference, Science Faculty of University of Natal-Durban Report, No. 3/2000, pp. 129-145

2.       Anguelov, R and Lubuma, J.M.-S 2000. Nonstandard finite difference method for some models of applied sciences. (Keynote address delivered by Lubuma at the 43rd annual congress of the South African Mathematical Society, Pretoria, 16-18 October 2000), Notices of the South African Mathematical Society, Vol 31, pp.143-152.

3.       Dumont, Y. and Lubuma, J.M-S. 2007 Reliable finite difference schemes for impact oscillators with one or two degrees of freedom, (Keynote address delivered by Lubuma at the 49^th annual congress of the South African Mathematical Society to be published in the Notices of the South African Mathematical Society, Bloemfontein, 6-8 November 2006). Notices of the South African Mathematical Society, Vol 38, pp.83-102.

4.       Anguelov, R., Dumont Y. and Lubuma, J.M-S. 2012. On NSFD schemes in Biosciences. 4th International conference of the Euro-American Consortion for Promoting the Application of Mathematics in Technical and Natural Sciences (AMITANS12), Varna, Bulgaria, 11-16 June 2012

5.       Anguelov, R, Dumont Y. and Lubuma, J.M-S. 2012. Reliable numerical simulations in biosciences, International Conference on Mathematical Methods and Models in Biosciences (BIOMATH 2012), Sofia, Bulgaria, 17-22 June 2012

6.       ​Lubuma, J.M.-S.M 2014, Differential equations models in biosciences and reliable numerics, 20 Years of Democracy Symposium on Mathematics in the new South Africa, University of the Witwatersrand, Johannesburg, 12--13 September 2014.

7.       Lubuma, J.M.-S.M 2016, Differential equations models in biosciences and reliable numerics, African Academy of Sciences (AAS) / African Mathematical Union (AMU) Symposium on Current Research Trends in Mathematical Sciences and Applications, National Mathematical Centre, Abuja, Nigeria, 16 - 20 May 2016.

8. Lubuma, J.M.-S 2017, Nonstandard finite difference schemes in life sciences, Keynote address at  the International Conference Mathématiques Appliquées à des Questions de Développement (MADEV17) : Mathématiques Appliquées et Epidémiologie, Académie des Sciences de France and  Académie Hassan II des Sciences et Techniques, Rabat, Morocco, 16-19 October 2017.             

9.       Lubuma, J.M.-S.M 2017, Differential equations models in life sciences and reliable numerics, Annual Conference of the Southern Africa Mathematical Sciences Association (SAMSA), Arusha, Tanzania, 20 - 23 November 2017.

10.      Lubuma, J.M.-S.M 2018, Nonstandard finite difference models of some differential equations in life sciences, Keynote address at the 10th Blackwell-Tapia Conference, Institute for Computational and Experimental Research in Mathematical Sciences (ICERM), Brown University, Providence, Rhode Island, USA, 9-10 November 2018. (stream: https://icerm.brown.edu/video_archive/?play=1753 )

11. Lubuma, J.M.-S 2019, Analysis of some epidemiological models undergoing ornot undergoing backward bifurcations and their nonstandard discretizations, Keynote address at the International Conference Mathématiques Appliquées à des Questions de Développement (MADEV19) : Mathématiques Appliquées et Théorie du Contrôle Appliquée à l’Epidémiologie, Académie des Sciences de France and Académie Nationale des Sciences and Techniques du Sénégal, Dakar, Sénégal, 25-27 November 2019.