Global Hopf Bifurcation in a Phytoplankton–Zooplankton System with Delay and Diffusion
2021 ◽
Vol 31
(08)
◽
pp. 2150114
Keyword(s):
In this paper, the dynamics of a phytoplankton–zooplankton system with delay and diffusion are investigated. The positivity and persistence are studied by using the comparison theorem and upper and lower solutions method. The stability of steady states and the existence of local Hopf bifurcation are obtained by analyzing the distribution of eigenvalues. And the global existence of positive periodic solutions is established by using the global Hopf bifurcation result given by Wu [1996]. Finally, some numerical simulations are carried out to illustrate the analytical results.
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