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Liu, C., Gao, J. and Kanesan, J. (2024) Dynamics Analysis and Optimal Control of Delayed SEIR Model in COVID-19 Epidemic. Journal of Inequalities and Applications, 2024, 1-37.
https://doi.org/10.1186/s13660-024-03140-2

has been cited by the following article:

• TITLE: Hopf Bifurcation Analysis of Fractional SEIR Model with Double Time Delays

  AUTHORS: Fuhong Zhang, Xiaolan Liu

  KEYWORDS: Hopf Bifurcation, Fractional-Order Delayed SEIR, Stability

  JOURNAL NAME: Journal of Applied Mathematics and Physics, Vol.14 No.9, September 14, 2026

  ABSTRACT: If a natural disaster like the epidemic breaks out again, we all know that the consequences will be unimaginable. In order to describe the transmission process of infectious diseases more vividly, this paper constructs a new fractional-order SEIR model, and introduces two time-delay parameters: incubation period and recovery period. For this system, we calculate two equilibrium points, and focus on the stability of the local equilibrium point affected by time delay and hopf bifurcation. Finally, we calculate the critical time delay through the numerical calculator maple, and verify the local asymptotic stability at the equilibrium point and the result of hopf bifurcation through numerical simulation.