Research article

The existence of codimension-two bifurcations in a discrete-time SIR epidemic model

  • Received: 27 September 2021 Accepted: 17 November 2021 Published: 30 November 2021
  • MSC : 92B05, 37G05, 37G15, 39A28

  • In this paper, we consider a discrete-time SIR epidemic model. Codimension-two bifurcations associated with 1:2, 1:3 and 1:4 strong resonances are analyzed by using a series of affine transformations and bifurcation theory. Numerical simulations are carried out to verify and illustrate these theoretical results. More precisely, two kinds of high-resolution stability phase diagrams are exhibited to describe how the system's complexity unfolds with control parameters varying.

    Citation: Xijuan Liu, Peng Liu, Yun Liu. The existence of codimension-two bifurcations in a discrete-time SIR epidemic model[J]. AIMS Mathematics, 2022, 7(3): 3360-3378. doi: 10.3934/math.2022187

    Related Papers:

  • In this paper, we consider a discrete-time SIR epidemic model. Codimension-two bifurcations associated with 1:2, 1:3 and 1:4 strong resonances are analyzed by using a series of affine transformations and bifurcation theory. Numerical simulations are carried out to verify and illustrate these theoretical results. More precisely, two kinds of high-resolution stability phase diagrams are exhibited to describe how the system's complexity unfolds with control parameters varying.



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