Research article

Stability of a class of nonlinear hierarchical size-structured population model

  • Received: 17 May 2022 Revised: 18 June 2022 Accepted: 07 July 2022 Published: 19 July 2022
  • This paper investigates the existence of positive equilibrium as well as the stability of positive equilibrium and zero equilibrium in a nonlinear size-structured hierarchical population model. Under the condition that larger individuals are more competitive advantages than smaller ones, a non-zero fixed point theorem is used to show that there is at lest one positive equilibrium in the system. Moreover, we obtain the stability results of positive equilibrium and zero equilibrium by deriving characteristic equations and establishing Liapunov function. Finally, some numerical experiments are presented.

    Citation: Weicheng Chen, Zhanping Wang. Stability of a class of nonlinear hierarchical size-structured population model[J]. Mathematical Biosciences and Engineering, 2022, 19(10): 10143-10159. doi: 10.3934/mbe.2022475

    Related Papers:

  • This paper investigates the existence of positive equilibrium as well as the stability of positive equilibrium and zero equilibrium in a nonlinear size-structured hierarchical population model. Under the condition that larger individuals are more competitive advantages than smaller ones, a non-zero fixed point theorem is used to show that there is at lest one positive equilibrium in the system. Moreover, we obtain the stability results of positive equilibrium and zero equilibrium by deriving characteristic equations and establishing Liapunov function. Finally, some numerical experiments are presented.



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