Abstract
Due to many uncertain factors, the microorganism flocculation models could be affected by environmental noise. The paper aims to discuss the dynamical behavior of a stochastic microorganism flocculation model, including the extinction and the persistence. Moreover, the expression of density function near the positive equilibrium point is explicitly obtained. Our results indicate that a larger white noise can accelerate the extinction of microorganism, while a weaker white noise can guarantee the existence of stationary distribution. In addition, our theory is confirmed by some numerical examples.
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Funding
The research is supported by the Natural Science Foundation of China (No.11871473), Shandong Provincial Natural Science Foundation (Nos.ZR2019MA010, ZR2019MA006) and the Fundamental Research Funds for the Central Universities (No.19CX02055A).
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DJ designed the research and methodology. XM wrote the original draft. All authors read and approved the final manuscript.
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Mu, X., Jiang, D. & Alsaedi, A. Dynamical Behavior of a Stochastic Microorganism Flocculation Model with Nonlinear Perturbation. Qual. Theory Dyn. Syst. 21, 42 (2022). https://doi.org/10.1007/s12346-022-00566-1
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DOI: https://doi.org/10.1007/s12346-022-00566-1