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Stability Analysis of a Fractional-Order SEIR-KS Computer Virus-Spreading Model with Two Delays

Author

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  • Zhufeng Wang
  • Xiaoqian Nie
  • Maoxin Liao
  • Kolade M. Owolabi

Abstract

In this paper, the stability and Hopf bifurcation of a fractional-order model of the Susceptible-Exposed-Infected-Kill Signals Recovered (SEIR-KS) computer virus with two delays are studied. The sufficient conditions for solving the stability and the occurrence of Hopf bifurcation of the system are established by using Laplace transform, stability theory, and Hopf bifurcation theorem of fractional-order differential systems. The research shows that time delays and fractional order q have an important effect on the stability and the emergence of Hopf bifurcation of the fractional computer virus model. In addition, the validity of the theoretical analysis is verified by selecting appropriate system parameters for numerical simulation and the biological correlation of the equilibrium point is discussed. The results show that the bifurcation point of the model increases with the decrease in the model fractional order q. Under the same fractional order q, the effects of different types of delays on bifurcation points are obviously different.

Suggested Citation

  • Zhufeng Wang & Xiaoqian Nie & Maoxin Liao & Kolade M. Owolabi, 2021. "Stability Analysis of a Fractional-Order SEIR-KS Computer Virus-Spreading Model with Two Delays," Journal of Mathematics, Hindawi, vol. 2021, pages 1-15, October.
    • Handle: RePEc:hin:jjmath:6144953
    DOI: 10.1155/2021/6144953
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