Citation: | CAO Xiaochun, JING Wenjun, JIN Zhen. Dynamic Analysis of the Network Epidemic Model Based on White Noise[J]. Applied Mathematics and Mechanics, 2022, 43(6): 690-699. doi: 10.21656/1000-0887.430009 |
Based on the deterministic network infectious disease model, a stochastic network infectious disease model under the influence of white noise was established, and the existence and uniqueness of the global solution to the model were proved. With the theory of stochastic differential equations, sufficient conditions for stochastic extinction and persistence of infectious diseases were obtained. The results show that, white noise has a great impact on the transmission dynamics of network infectious diseases. White noise can effectively suppress the spread of infectious diseases, and large white noise can even make the original persistent infectious diseases become extinct. Finally, the theoretical results were verified through numerical simulations.
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