Periodic solutions of single-species models with periodic delay
SIAM Journal on Mathematical Analysis
Periodic solutions of single-species nonautonomous diffusion models with continuous time delays
Mathematical and Computer Modelling: An International Journal
A nonautonomous predator-prey system with stage structure and double time delays
Journal of Computational and Applied Mathematics
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In this paper, the author investigates two-species nonautonomous delay diffusive preypredator models with Michaelis-Menten functional response. Sufficient conditions are derived for permanence of the species. Further, the author also establishs the sufficient conditions that guarantee the arbitrary positive periodic solution of the systems is global attractive.