Editorial boards and refereeing duties

  1. (Associate) Editor:
    • Afrika Matematika (Springer),  Journal of the African Mathematical Union
    • Biomath Forum
    • Journal of the Nigerian Mathematical  Society (Elsevier)
    • Mathematics and Computers in Simulation (Elsevier)
  1. Referee from time to time of:
    • Annales de la Faculté des Sciences, University of Kinshasa
    • Applied Mathematics and Computation
    • Applied Mathematics Letters
    • Communications in Numerical Methods in Engineering
    • Computers and Mathematics with Applications
    • Demonstratio Mathematica
    • Electronic Journal of Differential Equations 
    • Journal of Biological Dynamics
    • Journal of Computational and Applied Mathematics
    • Journal of Computational Mathematics
    • Journal of Difference Equations and Applications
    • International Journal of Mathematics and Mathematical Sciences
    • Mathematical Biosciences
    • Mathematical Biosciences and Engineering
    • Mathematical Methods in the Applied Sciences
    • Mathematical Problems in Engineering
    • Numerical Methods for Partial Differential Equations
    • Proceedings of the Nigerian Academy of Sciences

3. Reviewer of Mathematical Reviews

4. External examiner for several postgraduate students, including the following Habilitation/PhD theses:

    • A. Maghnouji: Elliptic and parabolic problems in non smooth domains, PhD, University of Lille, France, 9 December 1992
    • I. Ramadhani: Investigation of the asymptotic behavior of certain finite-difference models of Schrodinger-type ordinary differential equations and Scalar curvature functions under conformal deformations of metrics, PhD, University of Benin, Republic of Benin, 12 February 1994
    • M. Sango, Eigenvalues and root vectors of non-selfadjoint elliptic problems with indefinite weight for systems of partial differential equations, PhD, University of Valenciennes, France, 15 December 1998.
    • I. Choubanne, Mixed finite element methods for the stationary Boussinesq equations with thermocapillarity effect on the surface of the liquid, PhD, University of Valenciennes, France, 27 June 2003.
    • W Iyaya, Investigations on singular Cauchy problems, PhD, Kenyatta University, Kenya, October 2007.
    • Y. Dumont, Problèmes vibro-impactants, méthodes aux différences finies non standards et biomathématiques. Quelques contributions, Habilitation a diriger les Recherches (HDR), University of Reunion Island, France, 17 December 2009.
    • A. Bonneu, Développement d’un modèle continu d’enracinement base sur l’agrégation de l’architecture racinaire des plantes, PhD thesis, University of Montpellier 2, France, 23 November  2011.
    • H.S. Mamba, Numerical solutions for a class of nonlinear Volterra integral equations, MSc dissertation, University of Johannesburg, South Africa, March 2015.
    • O.F. Egbelowo, The nonstandard finite difference method applied to pharmacokinetic models, PhD thesis, University of the Witwatersrand, South Africa, April 2018.
    • A.A. Aligaz, Mathematical modelling of the transmission dynamics of contagious bovine pleuropneumonia with vaccination and antibiotic treatment, Ph.D., University of South Africa, South Africa, December 2020. 

5. Arbitration for the following PhD thesis: 

    • Y.O. Tijani, Finite difference methods for Burgers-Huxley equation and biofilm formation, PhD, Nelson Mandela University, 2023

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