Research Articles (Mathematics and Applied Mathematics)

Research Articles (Mathematics and Applied Mathematics)

 

A collection containing some of the full text peer-reviewed/ refereed articles published by researchers from the Department of Mathematics and Applied Mathematics

Recent Submissions

  • Madanha, Sesuai Yasha (University of Isfahan, 2021-03)
    Please read abstract in the article.
  • Banasiak, Jacek (Springer, 2021-03)
    In this note we provide a new proof of the Tikhonov theorem for the infinite time interval and discuss some of its applications.
  • Madanha, Sesuai Yasha (Taylor and Francis, 2022)
    A classical theorem on character degrees states that if a finite group has fewer than four character degrees, then the group is solvable. We prove a corresponding result on character values by showing that if a finite group ...
  • Manjunath, Gandhi (Institute of Electrical and Electronics Engineers, 2022)
    Recurrent neural networks (RNNs) are successfully employed in processing information from temporal data. Approaches to training such networks are varied and reservoir computing-based attainments, such as the echo state ...
  • Mancuso, Marina; Eikenberry, Steffen E.; Gumel, Abba B. (KeAi Communications, 2021-09-09)
    Multiple effective vaccines are currently being deployed to combat the COVID-19 pandemic, and are viewed as the major factor in marked reductions of disease burden in regions with moderate to high vaccination coverage. ...
  • Gumel, Abba B.; Iboi, Enahoro A.; Ngonghala, Calistus N.; Elbasha, Elamin H. (KeAi Communications, 2021-11-30)
    The novel coronavirus (COVID-19) pandemic that emerged from Wuhan city in December 2019 overwhelmed health systems and paralyzed economies around the world. It became the most important public health challenge facing ...
  • Van Appel, Vaughan; Mare, Eben (Academy of Science of South Africa, 2022-03)
    An important topic for retirees is determining how much they can safely withdraw from their retirement savings: draw too much from their retirement fund and risk outliving their retirement savings, or draw too little and ...
  • Ballester-Bolinches, A.; Madanha, Sesuai Yasha; Mudziiri Shumba, T.M.; Pedraza-Aguilera, M.C. (Cambridge University Press, 2022-04)
    In this paper, we study the structure of finite groups G=AB which are a weakly mutually sn -permutable product of the subgroups A and B, that is, A permutes with every subnormal subgroup of B containing A∩B and B permutes ...
  • Dukuza, Njengele Kenneth Kennedy (University of Tébessa, 2021)
    Modeling real life phenomena often leads to complex nonlinear dynamics such as bifurcation and chaos. The study of such problems has attracted interest of many scientists over the past decades. In this paper, we present ...
  • Taljaard, Byran Hugo; Mare, Eben (Routledge, 2021)
    It is widely noted that market capitalisation weighted portfolios are inefficient and underperform an equal weighted portfolio over the long-term. However, at least since 2016, an equal weighted portfolio of stocks in the ...
  • Schwanke, Christopher (Taylor and Francis, 2022)
    We provide two new characterizations of bounded orthogonally additive polynomials from a uniformly complete vector lattice into a convex bornological space using separately two polynomial identities of Kusraeva involving ...
  • Madanha, Sesuai Yasha (Taylor and Francis, 2022)
    Please read abstract in the article.
  • Gumel, Abba B.; Iboi, Enahoro A.; Ngonghala, Calistus N.; Ngwa, Gideon A. (Frontiers Media, 2021-07-23)
    A novel coronavirus emerged in December of 2019 (COVID-19), causing a pandemic that inflicted unprecedented public health and economic burden in all nooks and corners of the world. Although the control of COVID-19 largely ...
  • Chapwanya, Michael; Dumani, Phindile (Wiley, 2022)
    Wildlife conservation is crucial in preventing endangered species from becoming extinct, and disease outbreaks is one of the biggest threats. Rabies is one of the devastating viruses that can almost be impossible to control ...
  • Banda, Heather; Chapwanya, Michael; Dumani, Phindile (Elsevier, 2022-06)
    A characteristic feature of living organisms is their response to the environment in search for food or reproduction opportunities. This paper is devoted to the investigation of the pattern formation of the Holling-Tanner ...
  • Chapwanya, Michael; Lubuma, Jean M.-S.; Lutermann, Heike; Matusse, A.; Nyabadza, F.; Terefe, Y. (Taylor and Francis, 2021)
    A deterministic mathematical model for the dynamics of cannabis use in a South Africa metropolis of Durban is proposed and analysed. To the analysis the model, the important threshold parameter ℛ0 (the basic reproduction ...
  • Le Roux, Christiaan (Springer, 2022)
    This article deals with the solvability of the boundary-value problem for the Navier-Stokes equations with a direction-dependent Navier type slip boundary condition in a bounded domain. Such problems arise when steady flows ...
  • Banasiak, Jacek; Ouifki, Rachid; Woldegerima, Woldegebriel Assefa (Biomath Forum, 2021-10-13)
    In this paper, we provide a brief survey of mathematical modelling of malaria and how it is used to understand the transmission and progression of the disease and design strategies for its control to support public health ...
  • Janse van Rensburg, N.F. (Nicolaas); Du Toit, Sonja; Labuschagne, Madelein (Springer, 2021-10)
    In this article, we consider a variant of the Simo–Reissner theory for a rod but restrict the study to two-dimensional motion where the rod undergoes flexure, shear and extension but not torsion. Linear elastic behaviour ...
  • Madanha, Sesuai Yasha (Elsevier, 2021-08)
    Please read abstract in the article.

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