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• W2945595531 startingPage "2973" @default.
• W2945595531 abstract "The topological structures of complex networks have been playing an important role on the epidemic spreading. There has been several studies of pairwise epidemic models on adaptive networks with Poisson distribution, all of which have shown that the rewiring behaviors can lead to complex dynamics numerically or analytically. However, the triples approximation formula under Poisson distribution overlooked the degree of center node of triples which has dramatic effects on the structures. Therefore in this paper, through a new moment closure incorporating the effect of center node's degree, we study how the topological structures of adaptive networks influences epidemic dynamics. The SIS pairwise epidemic model is first closed by the new triple approximation formula, then we transform the model into an equivalent nondimensionalized three dimensional system. By the qualitative theory and the stability theory of ordinary differential equations, the basic reproduction number R0 of the model is obtained, the existence and stabilities of the equilibria are analyzed. Moreover, we prove that the model exhibits transcritical forward bifurcation, backward bifurcation, saddle-node bifurcation and Hopf bifurcation using the methods of bifurcation theory. In addition, by a numerical example, the normal form of Hopf bifurcation and the first Lyapunov coefficient are derived, which show that a stable limit cycle can bifurcate from the endemic equilibrium with larger epidemicity. Our study show that the adaptive behavior can lead to rich dynamics on epidemic transmission, including oscillation and bistability. Finally the numerical simulations which is consistent with the analytical results above are given." @default.
• W2945595531 created "2019-05-29" @default.
• W2945595531 creator A5015472944 @default.
• W2945595531 creator A5083317826 @default.
• W2945595531 date "2019-04-10" @default.
• W2945595531 modified "2023-10-09" @default.
• W2945595531 title "Bifurcation analysis of a pair-wise epidemic model on adaptive networks." @default.
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• W2945595531 doi "https://doi.org/10.3934/mbe.2019147" @default.
• W2945595531 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/31137246" @default.
• W2945595531 hasPublicationYear "2019" @default.
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